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  • INSTRUMENTATION AND PHOTOGRAPHY  (1,189)
  • ASTRONOMY  (1,188)
  • 1975-1979  (2,377)
Collection
Keywords
Years
Year
  • 1
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    Astronomy satellite obtains first X-ray burst picture (1979)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Keywords: ASTRONOMY
    Type: NASA-NEWS-RELEASE-79-65 , P79-10051
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
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    Americans and Canadians to study February 26 eclipse (1979)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Keywords: ASTRONOMY
    Type: NASA-NEWS-RELEASE-79-18 , P79-10018
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    X-ray observatory reveals extremely distant quasars (1979)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Keywords: ASTRONOMY
    Type: NASA-NEWS-RELEASE-79-36 , P79-10036
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 4
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    Use of piezoelectric multicomponent force measuring devices in fluid mechanics (1979)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: The characterisitics of piezoelectric multicomponent transducers are discussed, giving attention to the advantages of quartz over other materials. The main advantage of piezoelectric devices in aerodynamic studies is their ability to indicate rapid changes in the values of physical parameters. Problems in the accuracy of measurments by piezoelectric devices can be overcome by suitable design approaches. A practical example is given of how such can be utilized to measure rapid fluctuations of fluid forces exerted on a circular cylinder mounted in a water channel.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA-TM-75444
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 5
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    International Ultraviolet Explorer (IUE) Post Launch Report 2 (1979)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: The International Ultraviolet Explorer (IUE), an Explorer class ultraviolet astronomy mission, is an international cooperative program between the United States, the United Kingdom (UK), and the European Space Agency (ESA) which provides for a single launch into geosynchronous orbit to conduct spectral distribution studies of celestial and solar system ultraviolet sources. The spacecraft and scientific instruments were designed and fabricated at the Goddard Space Flight Center. The spectrograph camera was provided by the UK; ESA provided the solar array as well as the European ground station. The IUE observatory system was designed to functionally resemble a ground-based optical observatory at which guest observers could execute observing programs in real time. Observatory performance substantially exceeded design and mission objectives. The secondary mission objectives were also met.
    Keywords: ASTRONOMY
    Type: NASA-TM-80471 , S-868-78-03 , REPT-2
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 6
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    A flaring X-ray pulsar in Dorado (1979)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: A study of unusual gamma-ray bursts detected on March 5 and March 6, 1979 in the KONUS experiment on the Venera 11 and Venera 12 spacecraft shows their source to be flaring X-ray pulsar in Dorado.
    Keywords: ASTRONOMY
    Type: NASA-TM-75658 , REPT-617
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 7
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    Spectral transformation in the SOFI complex for processing photographic images on the ES computer, part 1 (1979)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: A description is given of three programs catalogued in the form of object modules in the library of a system for processing photographic images computer. PFT is the subprogram of the multi-dimensional BPF of real-valued information, in the operative computer memory. INRECO is a subprogram-interface between the real and complex formats for representing two-dimensional spectra and images. FFT2 is a subprogram for calculating the correlation functions of the image using the previous subprograms.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA-TM-75632-PT-1 , PR-394
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 8
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    UBVR observation of V1357 Cyg = Cyg X-1. Search of the optical radiation of the accretion disk (1979)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: Data from 30 nights of V 1357 Cyg observations in July, August, and September of 1977 are presented. The contribution of the disk to the optic brightness of the system is computed with regard for the heating of its surface by ultraviolet radiation from V 1357 Cyg and X-ray radiation from Cyg X-1. The disk radiation explains the irregular variability in the system brightness. The possibility of the eclipse of the star by the disk and the disk by the star is discussed.
    Keywords: ASTRONOMY
    Type: NASA-TM-75677 , PR-408
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 9
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    The radio telescope RATAN 600 (1978)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: A six-meter radio antenna having 900 reflector elements arranged on a 579 -meter diameter circle and located in the northern part of the Caucasian Mountains is described. The elements are about 7.4 m by 2 m resulting in a total reflector surface of about 10,000 sq m. Individual elements can be adjusted by changing 260 screws and can be rotated both horizontally and vertically as well as being moved translationally in the radial direction. The circular area is equipped with a grid of tracks where four asymmetric cylindrical paraboloids serving as subreflectors are located. The directional profile or observational direction of the antenna is achieved by shifting the subreflectors and changing the position of the reflecting elements with respect to the subreflectors. Different radio sources can be observed at the same time by using different subreflectors and their associated reflector sectors. Each subreflector is connected to a receiving station. Capabilities for spectroscopic observation are discussed.
    Keywords: ASTRONOMY
    Type: NASA-TM-75396
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 10
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    NASA's present and future sensor technology developments (1976)
    In:  Other Sources
    Details
    Publication Date: 2019-08-28
    Description: NASA's overall sensing, data acquisition, and instrumentation programs are reviewed. The review shows that the trends in advanced sensor technology involve increased use of solid-state sensors, multiapplication sensors, standardized instrumentation, and miniaturized detectors. Examples are given of several new technologies, showing how improvements in sensor operational capability (such as enhanced sensitivity and spectral range) derived from these advances have resulted in relaxed spacecraft stability requirements, mission time savings, and savings in weight, size, and power. The introduction of multiapplication sensors and standardized instrumentation will result in measurement cost reduction and improved compatibility with standardized spacecraft.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: AIAA PAPER 76-977 , Systems Design Driven by Sensors; Oct 18, 1976 - Oct 20, 1976; Pasadena, CA
    Format: text
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