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  • SPACE RADIATION  (3)
  • SPACE VEHICLES  (2)
  • 1970-1974  (5)
  • 1925-1929
  • 1
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    Observation of a cosmic gamma-ray burst on Apollo 16. I - Temporal variability and energy spectrum (1974)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: A cosmic gamma-ray event occurring April 27, 1972 at 10.68 UT was observed by gamma-ray and X-ray spectrometers on Apollo 16 as well as by Vela 6A. Analysis has yielded a detailed time profile of the entire event, an energy spectrum covering three order of magnitude (2.0 to 7.9 KeV and 0.067 to 5.1 MeV) and a source location. A well-defined onset prior to the main impulse period and a probable precursor are reported. The total energy of the event over the observed range was 2 x 10 to the minus 4th power ergs/sq cm. The data indicate the presence of a hard component which persists during the entire event, with a softer variable component becoming dominant during the most explosive burst portion.
    Keywords: SPACE RADIATION
    Type: Astrophysical Journal; 194; Nov. 15
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Apollo experience report. Guidance and control systems: Orbital rate drive electronics for the Apollo command module and lunar module (1974)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: A brief record of the development and use of the orbital-rate-drive assembly in the Apollo Program is presented. This device was procured as government-furnished equipment and was used on both the lunar module and the command module. Reviews of design, development, procurement, and flight experience are included.
    Keywords: SPACE VEHICLES
    Type: NASA-TN-D-7784 , JSC-S-409
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    A cosmic gamma ray burst measured by Apollo 16 (1974)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: A cosmic gamma ray burst at about 1058:21 UT on April 27, 1972, was detected with an omnidirectional scintillation counter on Apollo 16. The event whose energy was approximately 0.0002 erg/sq cm, was pulse height analyzed in 512 channels over the 0.067 less than or equal to E less than or equal to 5 MeV range, and shows a complex, multipeak structure on a 300 msec time scale. The burst was also measured by a collimated X-ray detector on Apollo 16, giving spectral data in the 2 to 8 keV range which, together with a simultaneous observation by Vela 6A, allows a directional determination.
    Keywords: SPACE RADIATION
    Type: ESRO The Context and Status of Gamma Ray Astronomy; p 11-16
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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    Experiment planning during the Skylab missions (1974)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: The objectives of the Skylab Program included observations of the earth, the sun, the stars, and a comet in addition to a variety of engineering and medical experiments. Attention is given to mission planning activities accomplished before the launch of the orbital workshop, during the manned missions, and between manned missions. Two major purposes of early experiments planning were related to the establishment of reasonable potential goals in terms of accomplishment and the discovery of potential problems in scheduling. Planning during the mission proceeded according to a scheme in which the planning was done on a daily basis. Experiences from the three Skylab missions are discussed separately. The results of the Skylab Program demonstrate the value of the daily experiment planning system that was capable of reacting to changing constraints.
    Keywords: SPACE VEHICLES
    Type: AAS PAPER 74-117 , Annual Meeting; Aug 20, 1974 - Aug 22, 1974; Los Angeles, CA
    Format: text
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    NASA TECHNICAL REPORTS
  • 5
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    Monitoring of solar far ultraviolet radiation from the OSO-5 satellite (1972)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: A spectrophotometer for monitoring the solar EUV in three broad wavelength bands is described. The kind of data obtained, along with sources of error, are presented. The content of the tape library which contains the data is outlined. The scientific results are discussed. These include the following: solar flares in the EUV, solar eclipse observations in the EUV, SFD's and relationship to solar flares, and the application of satellite sunrise and sunset data for the study of model upper atmospheres for the earth.
    Keywords: SPACE RADIATION
    Type: NASA-CR-130159
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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