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  • Chemistry  (51,010)
  • SPACE VEHICLES  (5,149)
  • INSTRUMENTATION AND PHOTOGRAPHY  (4,968)
  • Humans
  • 1970-1974  (32,408)
  • 1965-1969  (28,719)
Collection
Keywords
Publisher
Years
Year
  • 1
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    Radiography (1973)
    In:  CASI
    Details
    Publication Date: 2004-12-03
    Description: Radiography is discussed as a method for nondestructive evaluation of internal flaws of solids. Gamma ray and X-ray equipment are described along with radiographic film, radiograph interpretation, and neutron radiography.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Nondestructive Testing; p 63-99
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  • 2
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    Ground wind measurements and anemometer response (1966)
    In:  CASI
    Details
    Publication Date: 2011-09-13
    Description: Ground wind measurements and theoretical response of inertia-type anemometer
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 3
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    Miniature battery-operated electromagnetic flowmeter (1972)
    In:  Other Sources
    Details
    Publication Date: 2011-12-21
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Life Sci. Publ., Vol. 2; 7 p
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  • 4
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    Cold cathode gage /Lunar atmosphere detector/ (1970)
    In:  CASI
    Details
    Publication Date: 2004-12-06
    Description: Apollo 12 cold cathode gage and lunar atmospheric pressure measurements
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. MANNED SPACECRAFT CENTER APOLLO 12- PRELIM. SCI. REPT. 1 JUN. 1970; P 93-97
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  • 5
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    Apollo 12 multispectral photography experiment (1970)
    In:  CASI
    Details
    Publication Date: 2004-12-06
    Description: Apollo 12 multispectral photography and film processing techniques
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. MANNED SPACECRAFT CENTER APOLLO 12- PRELIM. SCI. REPT. 1 JUN. 1970; P 103-111
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  • 6
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    Thermal control materials (1969)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Heat absorption and emission balance for thermal control system of spacecraft
    Keywords: SPACE VEHICLES
    Type: SPACE MATER. HANDBOOK 1969; P 77-172
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  • 7
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    The ascent environment (1969)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Aerodynamic heating, vibration, shock, and random noise environments during spacecraft ascent
    Keywords: SPACE VEHICLES
    Type: SPACE MATER. HANDBOOK 1969; P 3-11
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  • 8
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    Lunar surface closeup stereoscopic photography (1970)
    In:  CASI
    Details
    Publication Date: 2004-12-01
    Description: Apollo 12 closeup stereophotographs of lunar dust, rocks, and soils
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. MANNED SPACECRAFT CENTER APOLLO 12- PRELIM. SCI. REPT. 1 JUN. 1970; P 183-188
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  • 9
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    Solar corona photography, part B (1972)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Photographic observations of the solar corona by the Apollo 16 command module pilot while in lunar orbit are reported. These were designed to provide data on outer coronal forms and intensities to elongation angles of 25 deg. The results of Apollo 15 solar corona photography verified the procedures and provided the first photographs of identifiable coronal streamers curving at elongation angles of some 10 deg. By using the Apollo 15 data, exposure settings were optimized for Apollo 16, and the results show a significant improvement in photometric quality over the large range of brightness to be photographed. Ground observations of the inner solar corona (to approximately 2 solar radii from Sun center) indicate a general lack of coronal structure, and results of data reduction thus far show no streamer structure at large elongation angles.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Apollo 16 Prelim. Sci. Rept.; 2 p
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  • 10
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    Astronomical photography. Part A: Gum nebula, galactic cluster, and zodiacal light photography (1972)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: It is reported that the Apollo 16 command module astronomical photography was performed with the specific objective of capitalizing on the uniqueness of the double umbra as a vantage point to collect astronomical data that are obtainable only near our Moon. For this reason, these data will be compared directly to analogous photography performed from Earth orbit during Project Mercury and the Gemini Program as well as to the Apollo-duplicated photography taken from sites on the Earth surface. Comparison with Earth-based photography should yield direct information on the Earth airglow layer and on atmospheric scattering and extinction.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Apollo 16 Prelim. Sci. Rept.; 2 p
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  • 11
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    Photogrammetry using Apollo 16 orbital photography, part B (1972)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Discussion is made of the Apollo 15 and 16 metric and panoramic cameras which provided photographs for accurate topographic portrayal of the lunar surface using photogrammetric methods. Nine stereoscopic models of Apollo 16 metric photographs and three models of panoramic photographs were evaluated photogrammetrically in support of the Apollo 16 geologic investigations. Four of the models were used to collect profile data for crater morphology studies; three models were used to collect evaluation data for the frequency distributions of lunar slopes; one model was used to prepare a map of the Apollo 16 traverse area; and one model was used to determine elevations of the Cayley Formation. The remaining three models were used to test photogrammetric techniques using oblique metric and panoramic camera photographs. Two preliminary contour maps were compiled and a high-oblique metric photograph was rectified.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Lyndon B. Johnson Space Center Apollo 16 Prelim. Sci. Rept.; 5 p
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  • 12
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    Photogrammetry and altimetry. Part A: Apollo 16 laser altimeter (1972)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: The laser altimeter measures precise altitudes of the command and service module above the lunar surface and can function either with the metric (mapping) camera or independently. In the camera mode, the laser altimeter ranges at each exposure time, which varies between 20 and 28 sec (i.e., 30 to 43 km on the lunar surface). In the independent mode, the laser altimeter ranges every 20 sec. These altitude data and the spacecraft attitudes that are derived from simultaneous stellar photography are used to constrain the photogrammetric reduction of the lunar surface photographs when cartographic products are generated. In addition, the altimeter measurements alone provide broad-scale topographic relief around the entire circumference of the moon. These data are useful in investigating the selenodetic figure of the moon and may provide information regarding gravitational anomalies on the lunar far side.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Apollo 16 Prelim. Sci. Rept.; 5 p
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  • 13
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    Composite systems utilization for space shuttle structures (1972)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Research and development of composite material systems to show applicability of these materials to shuttle structures and to demonstrate availability through a hardware development program is reported. The various configurations studied and potential areas of composite structures use are described and an outline of ongoing composite programs, complementing the indicated feasible applications, including a typical cost study, is shown. The following composite systems are investigated: Boron filaments with epoxy, polyimide, or aluminum matrix, and graphite filaments with epoxy or polyimide matrix.
    Keywords: SPACE VEHICLES
    Type: NASA Space Shuttle Technol. Conf.; p 605-644
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  • 14
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    Flight loads and control (1972)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: The prediction of flight loads and their potential reduction, using various control logics for the space shuttle vehicles, is very complex. Some factors, not found on previous launch vehicles, that increase the complexity are large lifting surfaces, unsymmetrical structure, unsymmetrical aerodynamics, trajectory control system coupling, and large aeroelastic effects. Discussed are these load producing factors and load reducing techniques. Identification of potential technology areas is included.
    Keywords: SPACE VEHICLES
    Type: NASA Space Shuttle Technol. Conf.; p 175-203
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  • 15
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    New considerations for pogo prevention on space shuttle (1972)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Recommendations for improving the methodology of pogo suppression for the space shuttle include: Consideration of inter-pump location for accumulator or active device, inclusion of tank outflow effects in dynamic structural analysis, the use of simplified transfer functions in systems studies, three phase dynamic testing program for turbopump with development of dynamic flowmeters, and the use of a linearized mathematical model for engine physics studies.
    Keywords: SPACE VEHICLES
    Type: NASA, Washington NASA Space Shuttle Technol. Conf.; p 97-116
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  • 16
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    Examination of the Surveyor 3 surface sampler scoop (1972)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: The operation and external appearance of the surface sampling scoop are discussed. An attempt was made to measure the magnitude of the existing adhesion between the lunar soil and the various surfaces of the scoop.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, Washington Analysis of Surveyor 3 Mater. and Phot. Returned by Apollo 12; p 100-114
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  • 17
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    Development of methods for fracture control of space shuttle structures (1972)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: The technology with respect to fracture control requirements of the shuttle is considered. The current state-of-the-art does permit an approach based on linear elastic fracture mechanics concepts. Development and implementation of a fracture control plan should recognize deficiencies and provide adequate resources for the extensive empirical test data which are required. With respect to the cost impact of such tests, recent experiences involving advanced aircraft systems have seen unit cost increases of from 200 to 500 percent.
    Keywords: SPACE VEHICLES
    Type: NASA Space Shuttle Technol. Conf.; p 727-770
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  • 18
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    Docking devices for Soyuz-type spacecraft (1972)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Two docking device designs for Soyuz-type spacecraft are compared. The first was flight tested successfully; the second achieves rigid and exact joining of two spacecraft, while incorporating changes to allow for the intravehicular transfer of crew members. The main functions of the docking device are considered, with the means by which they are accomplished, and measures for increasing its reliability and flexibility in service are noted.
    Keywords: SPACE VEHICLES
    Type: 6th Aerospace Mech. Symp.; p 143-150
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  • 19
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    NASA-ARC 36 inch airborne infrared telescope (1972)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: A 36 in. aperture telescope is being developed for installation aboard a NASA-Lockheed C-141A aircraft. This airborne observatory will permit observation of infrared emission at altitudes above 45,000 ft above much of the infrared-absorbing atmospheric water vapor. The telescope will look through a movable open port in the aircraft fuselage. A porous spoiler, upstream from the open port, will attenuate pressure disturbances and permit operation at ambient temperatures and pressures without an obscuring window. The telescope's entire structure is supported by a 16 in. spherical air bearing, which effectively isolates it from angular aircraft motions. This air bearing support, with inertial stabilization and star tracking, will permit net line of sight stability of better than 2 arcsec rms.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: 6th Aerospace Mech. Symp.; p 81-88
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  • 20
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    Astronomical photography, part T (1972)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Photographic observations of astronomical interest conducted during the Apollo 15 mission are discussed. Procedures used in photographing the solar corona are described together with calibration and reduction methods. In addition, selected preliminary results obtained from the photography are presented.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Its Apollo 15 Prelim. Sci. Rept.; 39 p
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  • 21
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    First earthshine photography from lunar orbit, part S (1972)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: The first photographs of the moon taken with earthshine illumination by the Apollo 15 crew were examined. Emphasis in the analysis was placed on a comparison of predicted exposures and obtained exposures. The results of the investigation indicate the following: (1) The predicted exposure of the maria areas and the obtained exposures were in reasonably close agreement. (2) The apparent-albedo values obtained for the floor of Aristarchus Crater are seven times greater than those for the maria.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Manned Spacecraft Center Apollo 15 Prelim. Sci. Rept.; 7 p
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  • 22
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    Aerospace transporter and lifting body activities in Europe and potential participation in the development of the space shuttle orbiter (1972)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: The course of European aerospace research regarding reentry problems is briefly reviewed for the period from 1966 up to the present. The considerable experience gained by Europe, and particularly Germany, is shown to have led to their involvement and participation in the U.S. space shuttle program. The areas of investigation and expected contributions by European cooperation in the shuttle program are outlined.
    Keywords: SPACE VEHICLES
    Type: NASA. Langley Res. Center Space Shuttle Aerothermodyn. Technol. Conf., vol. 3; p 969-995
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  • 23
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    The improvement of star positions by photographic methods (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: A brief description is given of the new astrometric camera and of the program on which it is being employed. This is the photography of the southern sky so that each star appears on at least four overlapping plates. Sets of star coordinates measured on each plate are combined with a limited set of provisional meridian places to give an accurate set of relative star positions which are independent of the meridian system together with a set of residuals for each plate-star. The technique is based on a simple geometrical model of image formation on photographic plates. Current investigations are concerned with the elimination of sources of systematic deviation from this model.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Univ. of South Fla. Conf. on Phot. Astrometric Technique; p 199-208
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  • 24
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    An F1 Schmidt satellite camera and the methods of plate measurement and reduction (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: The f1 Hewitt camera is a field flattened Schmidt system of 60cm aperture. The salient features of this equipment are briefly described. Details of the methods of plate measurement are then given. The plate reduction is carried out in two stages. The plate is first calibrated using the photogrammetric method. The formulae usually quoted have been extended to take account of the large distortion introduced by the field flattening lens. In the second stage, the satellite measurements are reduced to satellite positions corrected for refraction, aberration, and when necessary, phase.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Univ. of South Fla. Conf. on Photo. Astrometric Technique; p 141-154
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  • 25
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    Properties of hollow square gravitational wave detectors (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Antennas are described with gravitational radiation properties such as polarization, directivity, and scalar and tensor characteristics. These antenna devices are mechanically resonant systems in the shape of a hollow square with fundamental frequencies in the Hz range. An antenna characteristic is that the absorption cross section for quadrupole radiation at the normal frequency of vibration is the same as that of the fundamental if the damping factors are the same. The absorption cross section of quadrupole gravitational radiation is calculated for a class-1 detector of a cylindrical cross section and for a class-2 detector shaped like a hollow square.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: JPL Proc. of the Conf. on Exptl. Tests of Gravitation Theories; p 41-44
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  • 26
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    Development of payload subsystem-primate mission-Biosatellite program (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Design and operation of the primate life support subsystem for the Biosatellite Program as used during the flight of Biosatellite 3 are discussed. Included are preflight changes necessitated by the primate's (a Macaca nemistrina monkey) influence on the initial equipment design.
    Keywords: SPACE VEHICLES
    Type: NASA. Goddard Space Flight Center 5th Aerospace Mech. Symp.; p 177-183
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  • 27
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    Improvements in Ross type astrometric objectives (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: It is shown that aspheric deformations of the first and fourth elements of the four element Ross objective can be introduced to permit one to obtain improved color corrections for astrometric purposes. The usual monochromatic aberrations are as well corrected as for the standard Ross lens. In addition, one can eliminate or reduce additional aberrations, such as secondary spectrum, chromatic spherical aberration, chromatic coma and chromatic distortion. The resulting objectives are suitable for use as intermediate and long focus astrometric objectives covering large angle fields.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Univ. of South Fla. Conf. on Phot. Astrometric Technique; p 61-84
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  • 28
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    Introduction to passive nutation dampers (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Coning motion can prevent photographic and TV cameras and other oriented spacecraft experiments from maintaining a steady scan, and it can introduce a ripple in the high-gain communication system. Nutation dampers are used to remove this type of spacecraft instability. The first nutation damper flown in a missile for the stabilization of the gyroscope consisted of a hollow ring that was partially filled with mercury, and the sloshing of the mercury dissipated the nutational energy. A similar mercury-ring damper was used in the Pioneer 1 lunar probe in 1958 and became the first nutation damper to be used in space. Since then many types of nutation dampers have been designed for spin-stabilized spacecraft ranging in size from small scientific satellites to large space stations.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center 5th Aerospace Mech. Symp.; p 73-81
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  • 29
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    Docking-mechanism attenuator with electromechanical damper (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Theoretical and practical problems involved in the application of electromechanical damping for spacecraft docking-mechanism attenuation are discussed. Some drawbacks of hydraulic dampers used for the purpose are pointed out. The basic scheme of the attenuator with the electromechanical damper is given.
    Keywords: SPACE VEHICLES
    Type: NASA. Goddard Space Flight Center 5th Aerospace Mech. Symp.; p 43-57
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  • 30
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    Dynamic behavior of the mercury damper (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: The dynamic behavior of the mercury nutation damper is investigated. Particular attention is paid to the eccentric annular mercury configuration, which is the final continuous ring phase that occurs in the operation of all mercury dampers. In this phase, damping is poorest, and the system is closely linear. During the investigation, the hydrodynamic problem is treated as three dimensional, and extensive use is made of a variational principle of least-viscous frictional power loss. A variational principle of least-constraint is also used to advantage. Formulas for calculating the behavior of the mercury damper are obtained. Some confirmatory experiments were performed with transparent ring channels on a laboratory gyroscope. Selected movie frames taken during wobble damping are shown along with the results of film measurements.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center 5th Aerospace Mech. Symp.; p 9-16
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  • 31
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    Experiment D015: Night image intensification (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: A performance test of a night image intensification system for use as a visual aid by the crewmen in Gemini is reported. The equipment package consisted of (1) image intensification camera; (2) camera control unit; (3) viewing monitor; (4) recording monitor and photographic recorder; and (5) monitor electronics and equipment control unit. Representative photographs are predominantly of lights and clouds. Photographs of three different sections of coastline reveal a contrast between the images of land and ocean. These images range in quality from good to poor.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Manned Spacecraft Center The Gemini Program: Phys. Sci. Expt. Sum.; p 431-443
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  • 32
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    Experiment S005: Synoptic terrain photography (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Several tentative conclusions can be derived from the results of the synoptic terrain photography experiment, with particular reference to the results from the Gemini mission. The photographs are additional confirmation of the feasibility and value of orbital photographs for geology, geography, and oceanography. The photographs have proven to be of value in the study of the tectonic problems. Although vertical or near-vertical photography is superior to oblique photography, photographs from the Gemini 12 mission have proven that low oblique photographs, and even high oblique photographs, may be of value for certain situations. The oblique views of the Makran Range were useful substitutes for vertical photographs. Equivalent aerial coverage by vertical photographs would have necessitated a camera altitude of several hundred miles. The oblique views of the Sierra Madre Oriental have been used in the search for structures that are approximately normal to the horizon and are enhanced by the foreshortening because of the photograph.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: The Gemini Program: Phys. Sci. Expt. Sum.; p 337-381
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  • 33
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    Experiment M403: Electrostatic charge (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Experiment M403 was flown on the Gemini 4 and 5 spacecraft in an effort to discover whether the spacecraft could accumulate sufficient excess electric charge to constitute a hazard for later Gemini-Agena rendezvous missions. An attempt was made to measure the electric field terminating on a small area of the spacecraft retrograde adapter section and to calculate the total spacecraft charge from this measured field value. The Gemini 5 instrument was inhibited from responding to electric fields that corresponded to a charge on the spacecraft. However, readings were obtained on the Gemini 5 mission that were of as great or greater magnitude than those obtained on the Gemini 4 mission. This could be interpreted as an indication that the contribution of a net spacecraft charge to the Gemini 4 measurements was negligible. An operational measurement that was performed on a later rendezvous mission was indicative of a very small exchange of charge between the Gemini spacecraft and the Agena vehicle.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: The Gemini Program: Phys. Sci. Expt. Sum.; p 115-124
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  • 34
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    Experiment S013: Ultraviolet astronomical camera (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Recordings of the stellar ultraviolet radiation in the wavelength region from 2000 to 4000 angstroms are reported. An analysis of the surface temperatures of the stars, the absorption effects occurring in the atmospheres of the stars, and the absorption effects of the interstellar dust is made from the photographic data obtained. In addition to gathering basic astrophysical data about hot, young stars, the experiment is used to clarify the problems and techniques of uv photography of stars from manned spacecraft.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center The Gemini Program: Phys. Sci. Expt. Sum.; p 81-99
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  • 35
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    Experiment M411: Two color earth limb photography (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Some simple calculations were made regarding the scattered light phenomenon of a sunlit earth limb. It was assumed that the light was to be scattered by an atmosphere irradiated by a zenith sun. Calculations were made with several different scattering coefficients assignable to various wavelengths of the extended visual region. The dependence of the excess blue-limb elevation was less obviously determined by the scattering angle than was suspected. It is reasonable to surmise that the variation of the values of excess blue-limb elevation originated principally from the red-limb variance, because the form of the blue-limb profiles (at least in their upper part) was more regular than was that of the red-limb profiles.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Manned Spacecraft Center The Gemini Program: Phys. Sci. Expt. Sum.; p 101-114
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    Gyroscope test of gravitation: An analysis of the important perturbations (1971)
    In:  CASI
    Details
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    Description: Two perturbations, the earth's quadrupole moment and the earth's revolution around the sun, are discussed. Schiff's proposed gyroscope test of gravitation is analyzed, along with the capability of deciphering each separate contribution to the angular velocity of spin precession.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: JPL Proc. of the Conf. on Exptl. Tests of Gravitation Theories; p 82-84
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    Nutation dampers for manned spacecraft (1971)
    In:  CASI
    Details
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    Description: Nutation dampers are examined from the standpoint of application to manned space stations with artificial gravity. Typical spacecraft concepts and associated control requirements are considered, and examples of the dampers proposed for these spacecraft are discussed.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: 5th Aerospace Mech. Symp.; p 103-109
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    Low nutation-rate dampers (1971)
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    Details
    Publication Date: 2005-11-30
    Description: Mission requirements plus spacecraft weight and power constraints often reduce the excitation frequency of a nutation damper below 1 cpm. Since attitude stability is determined by damper performance, maximum effectiveness at low rates is demanded. Presented are design considerations that low-frequency dampers require, along with descriptions of two low-frequency systems: the Direct Measurement Explorer 1 and the Small Astronomy Satellite A (SAS-A).
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center 5th Aerospace Mech. Symp.; p 97-102
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    Response characteristics of a thermal-heliotrope solar-array orientation device (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: The thermal heliotrope is a passive solar-array orientation device containing a bimetallic helix that rotates when activated by solar energy. The rate and extent of the rotation depends upon the properties of the two metals and the temperature of the helix. An energy-balance analysis is performed to determine the temperature distribution in the helix. By initially restricting the analysis, a simplified equation governing the response of the heliotrope is obtained. In order to gain insight into the response of the heliotrope, a series of experiments were performed. The results of these tests and the implications are presented.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center 5th Aerospace Mech. Symp.; p 33-39
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  • 40
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    The importance of nondestructive testing for the coated metallic thermal protection system (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Nondestructive testing techniques for coated metallic thermal protection system for space shuttles
    Keywords: SPACE VEHICLES
    Type: NASA. LEWIS RES. CENTER SPACE TRANSPORTATION SYSTEM TECHNOL. SYMP., VOL. 3 JUL. 1970; P 261-272
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    Materials reuse, evaluation, inspection and repair (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Properties, evaluation, inspection, and repair of alloys and silicide coatings for space shuttles
    Keywords: SPACE VEHICLES
    Type: SPACE TRANSPORTATION SYSTEM TECHNOL. SYMP., VOL. 3 JUL. 1970; P 247-260
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  • 42
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    Temperature control for the space shuttle (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Temperature control system for space shuttles
    Keywords: SPACE VEHICLES
    Type: NASA. LEWIS RES. CENTER SPACE TRANSPORTATION SYSTEM TECHNOL. SYMP., VOL. 3 JUL. 1970; P 201-207
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    Space shuttle structural fatigue considerations (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Space shuttle structural fatigue analysis
    Keywords: SPACE VEHICLES
    Type: NASA. LEWIS RES. CENTER SPACE TRANSPORTATION SYSTEM TECHNOL. SYMP., VOL. 3 JUL. 1970; P 33-47
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  • 44
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    Structural design technology - Introduction and overview (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: NASA plan for development of space shuttle structural design technology
    Keywords: SPACE VEHICLES
    Type: SPACE TRANSPORTATION SYSTEM TECHNOL. SYMP., VOL. 3 JUL. 1970; P 9-16
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  • 45
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    Problems of atmospheric entry (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Aerodynamic and heating problems of spacecraft entry into Mars and Venus atmospheres
    Keywords: SPACE VEHICLES
    Type: PERFORMANCE AND DYN. OF AEROSPACE VEHICLES 1971; P 175-288
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  • 46
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    Space shuttle acoustics (1971)
    In:  CASI
    Details
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    Description: Farfield and nearfield acoustic environments of space shuttle
    Keywords: SPACE VEHICLES
    Type: NASA SPACE SHUTTLE TECHNOL. CONF., VOL. 3 APR. 1971; P 401-422
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  • 47
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    Shuttle pogo review (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Results of pogo stability analyses
    Keywords: SPACE VEHICLES
    Type: NASA SPACE SHUTTLE TECHNOL. CONF., VOL. 3 APR. 1971; P 359-399
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  • 48
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    Effects of space shuttle configuration on wing buffet and flutter. Part 1 - Launch vehicle with tip fin (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Influence of space shuttle configurations on wing aeroelastic behavior
    Keywords: SPACE VEHICLES
    Type: NASA SPACE SHUTTLE TECHNOL. CONF., VOL. 3 APR. 1971; P 181-199
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  • 49
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    Recent studies of effects of ground winds on space shuttle vehicles (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Studying ground-wind loads with models of space shuttle configurations to assess aerodynamic instabilities on erected space shuttle vehicles
    Keywords: SPACE VEHICLES
    Type: NASA SPACE SHUTTLE TECHNOL. CONF., VOL. 3 APR. 1971; P 155-179
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  • 50
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    Some landing gear considerations for space shuttle vehicles (1971)
    In:  CASI
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    Publication Date: 2005-11-27
    Description: Criteria for designing space shuttle landing systems
    Keywords: SPACE VEHICLES
    Type: NASA SPACE SHUTTLE TECHNOL. CONF., VOL. 3 APR. 1971; P 121-154
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  • 51
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    Holographic method of monitoring the performance of a large telescope mirror (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Holographic monitoring method for astronomical telescope mirror
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, WASHINGTON OPT. TELESCOPE TECHNOL. 1970; P 311-314
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  • 52
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    Evaluation of surface figure during manufacturing (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Interferometric control of surface figures during astronomical mirror manifacturing
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, WASHINGTON OPT. TELESCOPE TECHNOL. 1970; P 291-296
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  • 53
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    General philosophy of mirror support systems (1970)
    In:  CASI
    Details
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    Description: Design requirements for mirror support systems for terrestrial telescopes
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, WASHINGTON OPT. TELESCOPE TECHNOL. 1970; P 381-387
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  • 54
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    Some optical systems for a spaceborne telescope (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Optical mirror systems for spaceborne telescope
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, WASHINGTON OPT. TELESCOPE TECHNOL. 1970; P 321-325
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  • 55
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    The effects of processing on the dimensional stability of beryllium mirrors (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Processing effects on dimensional stability of beryllium mirrors for telescopes
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, WASHINGTON OPT. TELESCOPE TECHNOL. 1970; P 181-188
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  • 56
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    Possibilities for automating optical manufacture (1970)
    In:  CASI
    Details
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    Description: Computerized design and automated manufacture of optical lenses
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, WASHINGTON OPT. TELESCOPE TECHNOL. 1970; P 137-139
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  • 57
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    Image converters and image intensifiers (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Optical properties of image converters, image intensifiers, and photocathodes
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, WASHINGTON OPT. TELESCOPE TECHNOL. 1970; P 501-509
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  • 58
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    Electronography (1970)
    In:  CASI
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    Description: Large roll-film electronographic camera for aerial reconnaissance and astronomical observations
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, WASHINGTON OPT. TELESCOPE TECHNOL. 1970; P 511-521
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  • 59
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    High resolution measurements in space astronomy and the requirements for diffraction limited optics (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: High resolution measurements and diffraction limited optics of large space telescope
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, WASHINGTON OPT. TELESCOPE TECHNOL. 1970; P 33-38
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  • 60
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    Acoustic environment characteristics of the space shuttle (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Space shuttle acoustic environment characteristics and plume induced flow separation phenomenon
    Keywords: SPACE VEHICLES
    Type: SPACE TRANSPORTATION SYSTEM TECHNOL. SYMP., VOL. 2 JUL. 1970; P 285-300
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  • 61
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    The image isocon and related developments for astronomical space telescopes (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Developing image isocon camera tube for astrometric measurements in space
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, WASHINGTON OPT. TELESCOPE TECHNOL. 1970; P 591-597
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  • 62
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    Figure control of active primary mirrors (1970)
    In:  CASI
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    Description: Figure control computer system for active primary astronomical mirrors
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, WASHINGTON OPT. TELESCOPE TECHNOL. 1970; P 315-320
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    Spacecraft control (1970)
    In:  CASI
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    Description: Spacecraft attitude and reaction control, and Wiener-type filters for multivariable nonlinear processes
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: SPACE PROGRAMS SUM. NO. 37-61, VOL. 3 28 FEB. 1970; P 149-164
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  • 64
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    Surface smoothness of large astronomical mirrors - A collection of foucaultgrams (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Surface smoothness foucaultgrams of large astronomical mirrors
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, WASHINGTON OPT. TELESCOPE TECHNOL. 1970; P 153-164
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  • 65
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    Considerations relating to use of a large astronomical telescope in space (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Optical properties of large spaceborne telescopes
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, WASHINGTON OPT. TELESCOPE TECHNOL. 1970; P 83-87
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    Trajectory and performance (1970)
    In:  CASI
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    Description: Trajectory and performance of Agena-Nimbus 3 satellite
    Keywords: SPACE VEHICLES
    Type: THORAD-AGENA PERFORMANCE FOR THE ~NIMBUS 3 MISSION JUN. 1970; P 13-19
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    Development of the ideas of K. E. Tsiolkovskiy concerning 'rocket trains' in the transactions of Soviet and foreign scientists (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Mass ratio allowances for mathematical modeling of optimal multistage rocket vehicles
    Keywords: SPACE VEHICLES
    Type: TRANS. OF THE FIRST LECTURES DEDICATED TO THE DEVELOP. OF THE SCI. HERITAGE OF K. E. TSIOLKOVSKIY APR. 1970; P 27-41
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    The particles and fields subsatellite magnetometer experiment (1972)
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    Publication Date: 2005-11-30
    Description: It is reported that the objectives of the particles and fields subsatellite (PFS) magnetometer experiment are to calculate the interior electrical conductivity of the moon, to survey the remanent magnetization of the lunar surface, and to study the interaction of the moon with its plasma environment. The magnetometers also support the PFS particle experiment by providing onboard magnetic sectoring and a posteriori pitch angle data and plasma diagnostics.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Lyndon B. Johnson Space Center Apollo 16 Prelim. Sci. Rept. te]; 13 p
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    X-ray fluorescence experiment (1972)
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    Description: The X-ray fluorescence spectrometer, carried in the scientific instrument module bay of the command and service module, was used for orbital mapping of the lunar surface composition and X-ray galactic observations during transearth coast. The lunar surface measurements involved observations of the intensity and characteristic energy distribution of the secondary or fluorescent X-rays produced by the interaction of solar X-rays with the lunar surface. The astronomical observations consisted of relatively long periods of X-ray measurement of preselected galactic sources such as Cygnus (Cyg X-1) and Scorpius (Sco X-1).
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Apollo 16 Prelim. Sci. Rept.; 14 p
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    Far UV camera/spectrograph (1972)
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    Publication Date: 2005-11-30
    Description: The far UV camera/spectrograph deployed in the Apollo 16 mission recorded light in the invisible band of wavelengths between 50 and 160 nm, approximately one-third the wavelength that can penetrate the atmosphere of the earth to ground based telescopes. The photographs obtained show hydrogen and other gases in the solar wind and interplanetary media, and provide new data on stars, nebulae, and galaxies. The instrument is described, the experimental goals outlined, and the preliminary results discussed.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Lyndon B. Johnson Space Center Apollo 16 Prelim. Sci. Rept.; 14 p
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    Lunar orbital mass spectrometer experiment (1972)
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    Description: A lunar orbital mass spectrometer carried by the Apollo 16 command and service module was used to detect the lunar atmosphere and to search for active lunar volcanism. The experimental procedure and results are described.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Apollo 16 Prelim. Sci. Rept.; 6 p
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    Gamma ray spectrometer experiment (1972)
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    Description: The transearth coast period of the Apollo 16 mission provided an opportunity to study the astronomical sources of gamma radiation. This experiment was used to aid compositional identification for geochemical mapping of the lunar surface.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Apollo 16 Prelim. Sci. Rept.; 8 p
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    UV photography of the earth and moon (1972)
    In:  CASI
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    Description: This experiment obtained imagery of the earth and the moon at a series of wavelength intervals in the near ultraviolet. These photographs were used to aid in the interpretation of the UV appearance of other planets in the solar system, especially mars and venus. The filter and film characteristics are described, as well as the ozone absorption coefficient curve.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Lyndon B. Johnson Space Center Apollo 16 Prelim. Sci. Rept.; 5 p
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    Ultraviolet spectrometer experiment (1973)
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    Description: The original scientific objectives and the achieved results are discussed. The upper atmosphere was found to have a variable temperature, with a mean exospheric temperature of 325 K; composed predominantley of CO2. Measurements of hydrogen and ozone are analyzed.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: JPL Mariner Mars 1971 Proj., Vol. 5; p 53-61
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    Status of reusable surface insulation thermal protection system technology programs (1972)
    In:  CASI
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    Publication Date: 2005-11-30
    Description: The development of three low-density rigidized insulation materials for the shuttle TPS application is reported. These materials consist of one high purity silica system and two systems based on mullite, an aluminum silicate. Both systems consist of fibers joined together with appropriate binders to obtain a rigidized insulation composite. Both material systems require the application of a glassy coating to provide a wear resistant, high emittance surface and to prevent the absorption of water by the fiber matrix. The technology program has addressed the development of water impervious coatings, methods of assembling the materials in design concepts while minimizing the thermal stress in the insulation, achieving compatibility between the RSI material and the structural system, and test evaluations to demonstrate the feasibility of the surface insulation concept.
    Keywords: SPACE VEHICLES
    Type: NASA Space Shuttle Technol. Conf.; p 435-474
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    Overview of technology relative to the pogo instability on space shuttle (1972)
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    Description: The prediction of pogo contains a major source of uncertainty in the difficulty of defining the dynamic characteristics of certain components. An overview of the space shuttle technology with respect to each the following pogo problem areas is presented: structure, tank-liquid interaction, feedline, engine (pump), pogo-loop/control-loop interaction, and stability analysis.
    Keywords: SPACE VEHICLES
    Type: NASA Space Shuttle Technol. Conf.; p 117-138
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    Assessment of potential buffet problems on the space shuttle vehicle (1972)
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    Description: Buffet of the space shuttle launch and reentry configuration is an area requiring continued evaluation to produce a safe reliable vehicle of minimum weight. Buffet forces result from flow separation and therefore can not be predicted accurately. Buffet loads are highly sensitive to configuration, angle of attack, and Mach number and can be reliably determined only by wind tunnel tests of elastically scaled models.
    Keywords: SPACE VEHICLES
    Type: NASA Space Shuttle Technol. Conf.; p 25-43
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    Dynamic analysis for shuttle design verification (1972)
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    Description: Two approaches that are used for determining the modes and frequencies of space shuttle structures are discussed. The first method, direct numerical analysis, involves finite element mathematical modeling of the space shuttle structure in order to use computer programs for dynamic structural analysis. The second method utilizes modal-coupling techniques of experimental verification made by vibrating only spacecraft components and by deducing modes and frequencies of the complete vehicle from results obtained in the component tests.
    Keywords: SPACE VEHICLES
    Type: NASA Space Shuttle Technol. Conf.; p 205-230
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    Surveyor television camera, selected materials and electronic components, Appendix C (1972)
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    Description: The locations of various parts of the Surveyor camera are presented. Tables were prepared with emphasis on: (1) exterior parts and surfaces that are directly exposed to space, (2) parts that shield others from space radiation, (3) representative or unique materials, and (4) electronic devices that may contain unique or well-characterized materials.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, Washington Analysis of Surveyor 3 Mater. and Phot. Returned by Apollo 12; p 278-283
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    High voltage transmission microscopy of Surveyor 3 camera shrouds (1972)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: The internal structure of painted and unpainted aluminum alloy sheet samples from the TV camera shrouds were examined by high-voltage transmission electron microscopy. No clear-cut evidence of radiation damage effects was observed. Noticeable differences in microstructures between the upper visor and the sides and bottom of the lower shroud suggest different thermal histories, and the maximum temperatures due to solar heating are estimated to be between 164 and 319 C. Some correlation between microstructures and maximum estimated temperature is noted. It is felt that the apparent temperature rise due to solar heating will not affect the structural integrity of spacecraft components except possibly for very long periods of exposure. However, substantial thermal diffusion could affect interpretation of solar wind rare gas studies.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, Washington Analysis of Surveyor 3 Mater. and Phot. Returned by Apollo 12; p 184-196
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    Surface studies on Surveyor 3 tubing sections (1972)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Sections C and E of the unpainted, polished aluminum tubing from the strut of the radar altimeter and Doppler velocity sensor were examined in a transmission electron microscope for micrometeorite damage and ion bombardment. Both sections were contaminated and eroded on one side; it is suggested that these conditions were caused by sandblasting by lunar dust and retrorocket plume contamination during Surveyor 3 landing. Microcraters of different configurations were found on the bright sides of the tubes. Several degrees of violence were involved in the formation of the craters, and the particle size could be responsible for some differences. All micropits found were on the bright areas and data indicate 0.2 hypervelocity impact/sq cm and 2/sq cm for other types of craters. The greatest degree of damage resulted from particle impact and was limited to a maximum depth of 2 microns.
    Keywords: SPACE VEHICLES
    Type: NASA, Washington Analysis of Surveyor 3 Mater. and Phot. Returned by Apollo 12; p 154-158
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    A contamination experiment investigating the failure of the Nimbus 4 filter wedge spectrometer (1972)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: A ground test is described wherein a quartz crystal microbalance was used in defining the quantity and direction of a contaminant. The cause of the failure of an experiment in orbit was thus confirmed.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Space Simulation; p 469-485
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    An instrument for real time detection of contamination in space environmental tests chambers (1972)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: An instrument for in situ vacuum detection of surface reflectance changes at 1216A was designed. Using successive reflections, this instrument is more sensitive as an indicator of reflectance changes than similar instruments having only a single reflection. The selection of each component of the instrument and its operational performance is discussed.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Space Simulation; p 503-519
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  • 84
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    Aerodynamic studies of delta-wing shuttle orbiters. Part 2: Hypersonics (1972)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: An early version of an external hydrogen-oxygen tank orbiter was used as a baseline vehicle to experimentally evaluate: (1) nose shape and canopy effects on longitudinal, lateral, and directional stability and trim, and (2) yaw due to aerodynamic roll control at hypersonic speeds. Nose alterations were examined since that part of the vehicle may be subject to modifications because of internal packaging requirements, alleviation of potential high heating areas, and/or possible improvements in aerodynamic stability and control. There was also some concern about the effect of the rather high profile canopy on the aerodynamics; therefore its removal was examined. In addition, roll-yaw coupling was investigated because of its impact on the RCS fuel requirements for entry maneuvers.
    Keywords: SPACE VEHICLES
    Type: Space Shuttle Aerothermodyn. Technol. Conf., vol. 3; p 803-830
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  • 85
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    Impact of subsonic aerodynamic considerations on a space shuttle booster configuration (1972)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Considerations of cruise-back efficiency and subsonic flying qualities are shown to have resulted in a configuration with an aft high wing of moderate aspect ratio and with vertical tails located at the wing tips. The need to protect the air breathing engines during ascent and reentry and the desire for a low trim penalty longitudinal control surface led to consideration of a jet-flap canard. The advantages of this application of STOL technology to a space system are examined and the results of both wind tunnel tests and flight simulations are discussed. Since the use of the jet-flap canard concept offers the potential for a minimum weight vehicle, a proposed technology development program is outlined in order that the full benefit of this concept may be realized.
    Keywords: SPACE VEHICLES
    Type: NASA. Langley Res. Center Space Shuttle Aerothermodyn. Technol. Conf., vol.3; p 737-784
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  • 86
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    On the possibility of Earth reentry simulation of shallow angle Jupiter entry (1972)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Possible Earth reentry simulation of shallow-angle (3 to 30 deg) Jupiter entry was investigated in terms of four parameters of the bow shock layer ahead of a blunt vehicle: peak (equilibrium) temperature, peak pressure, peak inward radiative flux, and time-integrated radiative flux. It is shown that simulation ranging from fair to good can be achieved. Reentry is easiest (lowest Earth reentry speed) at steep Earth reentry, in the Earth entry speed range of 15 to 22 km/sec, for both the Jupiter nominal and cool atmospheres. Increased Earth speed is required, generally, for increasing Jupiter entry angle, and for increasing temperature, radiative flux, time-integrated flux and pressure, in that order.
    Keywords: SPACE VEHICLES
    Type: JPL Quart. Tech. Rev., Vol. 1, No. 4; p 19-29
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  • 87
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    Observations and reduction techniques of the US Coast and Geodetic Survey (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: The plate reduction method and other aspects of the world geodetic net are described. About one hundred stars are used as reference stars on the PAGEOS satellite plates obtained on 300mm f.1. and later 450mm f.1. Wild BC-4 cameras. The measurements are made manually now on diapositives since these can, according to experience, be measured with higher accuracy and are adjusted following a rigorous projective geometric model. The satellite images are analytically represented by a polynomial curve, of which seven fictitious points are regarded as the result from this plate. Some other aspects of the program are also discussed.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Univ. of South Fla. Conf. on Photo. Astrometric Technique; p 133-140
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  • 88
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    Physical limitations in sensors for a drag-free deep space probe (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: The inner perturbing forces acting on sensors were analyzed, taking into account the technological limitations imposed on the proof mass position pickup and proof mass acquisition system. The resulting perturbing accelerations are evaluated as a function of the drag-free sensor parameters. Perturbations included gravitational attraction, electrical action, magnetic action, pressure effects, radiation effects, and action of the position pickup. These data can be used to study the laws of guidance, providing an optimization of the space probe as a whole.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: JPL Proc. of the Conf. on Exptl. Tests of Gravitation Theories; p 197-212
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  • 89
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    Automatic plate mensuration and reduction at Aeronautical Chart and Information Center (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: The use of optical satellite observation data for geodetic purposes depends on the ability to extract pertinent information from photographic plates by identifying points on the plates and correlating them with known star positions for use in geodetic positioning. This procedure is accomplished with a new semi-automatic measuring system, an advanced analytical plate reduction program for the IBM 7094 computer, and a triangulation adjustment. The advantages gained with the measuring system, a brief discussion of the system itself, and the plate reduction and triangulation adjustment are described.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Univ. of South Fla. Conf. on Phot. Astrometric Technique; p 109-118
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  • 90
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    Astrometric investigations at the Vienna Observatory and astrometric plans for the 60 inch reflector of the L. Figl Observatory (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: A short discussion of the astrometric instruments at the Vienna Observatory is given. The essential features of design and organization of the planned 60 inch telescope are described. Furthermore, several points of view concerning modern astrometry are discussed, especially the usefulness of comparing astrometric results based upon different instruments, for instance the comparison between mirrors and refractor based data. Some examples are given together with new immediate results. Lastly, as far as possible at this moment astrometric plans for the new telescope are formulated.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Univ. of South Fla. Conf. on Phot. Astrometric Technique; p 99-108
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  • 91
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    The reduction of the National Aeronautics and Space Administration plates at the New Mexico University (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: A method of reducing GEOS satellite plates is described. The catalog positions of stars, whose images were measured, are updated to the time of the photographic observation. The plate constants are used to compute the positions of the seven (or fewer) flashing light images which were measured. There are corrected for refraction, parallax, and radial and decentering lens distortions. With sidereally tracking cameras, the exterior orientation is further corrected to the time of the particular flash, and the change of refraction with time is allowed for. First and second differences and standard deviations and covariances for the flashing light images are developed as a measure of accuracy.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Univ. of South Fla. Conf. on Phot. Astrometric Technique; p 119-122
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  • 92
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    The extraction of accurate coordinates of images on photographic plates by means of a scanning type measuring machine (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: The Moire method experimental stress analysis is similar to a problem encountered in astrometry. It is necessary to extract accurate coordinates from images on photographic plates. The solution to the mutual problem found applicable to the field of experimental stress analysis is presented to outline the measurement problem. A discussion of the photo-reading device developed to make the measurements follows.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Conf. on Phot. Astrometric Technique; p 55-60
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  • 93
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    Computer controlled precision digitizers of optical image data extraction (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: The flying spot digitizer and its applications are described. Suggestions are made as to how this apparatus might be used for the precise and fast measurement of star images on photographic plates.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Univ. of South Fla. Conf. on Phot. Astrometric Technique; p 15-24
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  • 94
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    Experiment S029: Earth-Moon libration regions photography (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Eleven photographs were taken of the L sub 4 earth-moon libration region during the Gemini 12 mission. The objective was to investigate the possible existence of clouds or particles of dust orbiting the earth in the L sub 4 region by the use of photographic techniques. No identifiable data were found in the first sequence of five photographs. Star field images could be recognized in two photographs of the second sequence of pictures. A light flare, of unknown source but possibly caused by light refraction from the window of the spacecraft, was recorded in both pictures. A reconstructed star field region (as photographed) is shown Isodensitraces of the two recognizable star fields were made; however, no conclusive results were obtained.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Manned Spacecraft Center The Gemini Program: Phys. Sci. Expt. Sum.; p 71-75
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    Experiment S001: Zodiacal Light Photography (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Observations made during the Gemini 5, 9, and 10 missions in the context of their relation to ground-based and balloon-based experiments on dim-light phenomena are reported. Zodiacal light is the visible manifestation of dust grains in orbit around the sun. The negatives that were exposed on the Gemini 9 mission were studied by the use of an isodensitracer to produce intensity isophotes. Data on the following factors were obtained: (1) intensity distribution of the zodiacal light, both morning and evening; (2) the height and intensity of the airglow at various geographic positions; and (3) intensity distribution of the Milky Way in the region of the sky near Cygnus. Also, a previously unreported phenomenon was discovered. This phenomenon appeared as an upward extension of the normal 90-kilometer airglow layer. The extension was in the form of wisps or plumes approximately 5 deg wide and extending upward approximately 5 deg. The results obtained from pictures exposed on the Gemini 10 mission were of qualitative or geometrical value only.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Manned Spacecraft Center The Gemini Program: Phys. Sci. Expt. Sum.; p 3-16
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  • 96
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    A semi-automatic measuring machine (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: A machine designed to locate automatically a star image on a photographic plate from approximate coordinates on a punched card and to measure and record its position to a micron is described. The main frame of the machine is of granite, as are the x and y coordinate carriages which move on air bearings against granite ways. The system is capable of making measurements continuously over a 10 x 10 inch range by means of a Ferranti moire fringe system, with a least count of one micron.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Univ. of South Fla. Conf. on Phot. Astrometric Technique; p 49-54
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    The Lick-Gaertner automatic measuring system (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: The Lick-Gaertner automatic equipment has been designed mainly for the measurement of stellar proper motions with reference to galaxies, and consists of two main components: the survey machine and the automatic measuring engine. The survey machine is used for initial inspection and selection of objects for subsequent measurement. Two plates, up to 17 x 17 inches each, are surveyed simultaneously by means of projection on a screen. The approximate positions of objects selected are measured by two optical screws: helical lines cut through an aluminum coating on glass cylinders. These approximate coordinates to a precision of the order of 0.03mm are transmitted to a card punch by encoders connected with the cylinders.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Univ. of South Fla. Conf. on Photo. Astrometric Technique; p 33-48
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  • 98
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    Experiment S030: Dim sky photography/orthicon (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: During Gemini missions, the image orthicon system was used to obtain photographic data on faint and diffuse astronomical phenomena. Results show that the photographs may be used to determine the airglow geometry. Although it was sensitive, the original photographic system was unsuitable for use in the study of dim and diffuse astronomical light sources.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: The Gemini Program: Phys. Sci. Expt. Sum.; p 445-454
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  • 99
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    Experiment S006: Synoptic weather photography (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: A data gathering effort on a number of cloud systems is reported. On both manned and unmanned Mercury and Gemini 3 missions, a number of good pictures of cloud systems were obtained. Also, specific experiments were performed by the crewmembers in the Mercury missions. Those experiments involved some of the spectral reflectance characteristics of clouds, land, and water regions of the earth surface as viewed from outside the atmosphere. Pictures obtained on successive revolutions of a Gemini spacecraft were indicative of the changes in and the movements of clouds at approximately 90-min intervals at certain points beneath the track of the spacecraft. A series of such views explain the various meteorological phenomena.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Manned Spacecraft Center The Gemini Program: Phys. Sci. Expt. Sum.; p 383-414
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  • 100
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    Materials properties and allowables for the space shuttle (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Space shuttle materials properties and allowables
    Keywords: SPACE VEHICLES
    Type: NASA. LEWIS RES. CENTER SPACE TRANSPORTATION SYSTEM TECHNOL. SYMP., VOL. 3 JUL. 1970; P 273-287
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