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  • INSTRUMENTATION AND PHOTOGRAPHY  (9)
  • PROPULSION SYSTEMS  (3)
  • ENVIRONMENT POLLUTION  (2)
  • 1970-1974  (14)
  • 1
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    The particles and fields subsatellite magnetometer experiment (1972)
    In:  CASI
    Details
    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
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Sterilization and environmental qualification of a rate-of-turn sensor for planetary exploration missions Final report (1970)
    In:  CASI
    Details
    Publication Date: 2017-07-01
    Description: Sterilization and environmental testing of solid state rate sensor with rectangular metal beam for planetary space flight
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: ACD-9914 , NASA-CR-111853
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    Mars and Venus orbiter spacecraft electric propulsion systems (1970)
    In:  Other Sources
    Details
    Publication Date: 2019-07-27
    Description: Mars and Venus orbiter spacecraft electric propulsion system, discussing Hg electron bombardment ion engine
    Keywords: PROPULSION SYSTEMS
    Type: AIAA PAPER 70-1154
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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    Effect of aerosol emission on the inference of trace gas concentrations from limb radiance data (1974)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: This note reports on an analysis of atmospheric emission spectra in the 10-12 micron region measured with a limb-oriented balloon-borne spectrometer. Data clearly show the existence of an additional feature at 10.8 microns which is probably due to measurement contamination from aerosols. The 10.8 micron emitter has a strong reducing effect on the HNO3 mixing ratio profile as determined by application of a symmetrical band shape model to the 10.8 spectral feature.
    Keywords: ENVIRONMENT POLLUTION
    Type: International Conference on the Environmental Impact of Aerospace Operations in the High Atmosphere; Jul 08, 1974 - Jul 10, 1974; San Diego, CA
    Format: text
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    NASA TECHNICAL REPORTS
  • 5
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    A summary of the results from the UCLA OGO-5 fluxgate magnetometer (1973)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: The OGO-5 fluxgate magnetometer experiment (E-14) was designed to measure the vector magnetic field over the full range of the OGO-5 orbit. Thus, it had a dynamic range of + or - 64,000 gamma yet it maintained a precision of + or - 1/16 gamma at all times. This enabled a broad spectrum of problems to be attached. Studies of the magnetospheric waves, currents, waves-particle interactions, pitch angle distributions and wave normal directions were made. The structure of the magnetopause, the magnetotail, and bow shock were probed, waves and discontinuities in the solar wind were examined and the various phases of substorms were examined in depth.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA-CR-130205 , IGPP-PUBL-1173-18 , NSSDC-ID-68-014A-14-PM
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 6
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    Some injector element detail effects on screech in hydrogen-oxygen rockets (1974)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: An experimental investigation was conducted to learn more about how the specific details of a concentric tube injection element affect the screech characteristics of a hydrogen-oxygen rocket engine. The four variables investigated were (1) impingement angle, (2) oxidizer tube blunt base thickness, (3) oxidizer tube recess and extension, and (4) oxidizer tube-annulus concentricity. Tests were made using a 27.34-cm (10.77-in.) diameter heat sink combustor at nominally 300-psia chamber pressure. All of the test variables were investigated using a 157 element circular pattern injector. Additional oxidizer tube recess tests were made with a 421 element hexagonal pattern injector. Tests were conducted over the oxidant-fuel ratio range of 4 to 6. Stability evaluation for each configuration was made using the hydrogen temperature rating technique. Several element configurations were also cold flow tested using nitrogen and water as simulants. The element detail changes resulted in changes in hydrogen injector pressure drop even though the physical injection area was constant for all similar tests in both hot firing and cold flow tests. These changes in injector pressure drop produced changes in combustion stability. The data were correlated with a modified version of a previously reported injection area ratio correlation. By interpreting changes in injector pressure drop as changes in injector hydrogen flow resistance, the data were compared with a hydrogen flow response stability model and were found to be in agreement.
    Keywords: PROPULSION SYSTEMS
    Type: NASA-TM-X-2982 , E-7512
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 7
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    Study of spin-scan imaging for outer planets missions: Executive summary (1974)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: The development and characteristics of spin-scan imagers for interplanetary exploration are discussed. The spin-scan imaging photopolarimeter instruments of Pioneer 10 and 11 are described. In addition to the imaging function, the instruments are also used in a faint-light mode to take sky maps in both radiance and polarization. The performance of a visible-infrared spin-scan radiometer (VISSR), which operates in both visible and infrared wavelengths, is reported.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA-CR-114746
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 8
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    Outer planet Grand Tour missions photometry/polarimetry experiment critical components study (1972)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Work performed during this effort was limited to two primary areas of technical concern: optical design optimization, and sensor selection. An optical system concept was established, and various system components were evaluated through experimental test sequences. Photodetectors were investigated for the applicability in meeting OPGT requirements as constrained by the photometry/polarimetry team directives. The most promising (gallium arsenide PMT) was further experimentally tested to ascertain its behavior with respect to anticipated environmental conditions. Results of testing and summary of the preceding tradeoff study effort are presented.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA-CR-131088
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 9
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    Pioneer imaging photopolarimeter optical system. (1973)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: The imaging photopolarimeter aboard the Pioneer 10 spacecraft en route to the vicinity of Jupiter is described. This instrument is capable of moderate resolution spin-scan imaging and high precision polarimetric and photometric mapping of Jupiter in red and blue light. The field of view can be selectively changed from 0.50 mrad square to 40 mrad square to accommodate resolution and radiance combinations ranging from the zodiacal background to that of Jupiter. Optical materials were chosen to survive, with minimum degradation, the rigors of a nearly 2-year journey to Jupiter including transit through the Jovian trapped radiation belts. The optics are described in detail, and the operational system is outlined. The procedures for preflight and in-flight calibration are described, and some performance characteristics and preliminary flight results are presented.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Applied Optics; 12; June 197
    Format: text
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    NASA TECHNICAL REPORTS
  • 10
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    Quartz crystal microbalance contamination monitors on Skylab: A quick look analysis (1973)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Six quartz crystal microbalance contamination monitors were flown on Skylab to monitor the deposition of material from spacecraft outgassing and from the rendezvous and docking maneuvers of the Command/Service Module. This report contains a quick-look analysis of the data from these units during the unmanned and manned portions of SL2.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA-TM-X-64778
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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