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  • SPACECRAFT INSTRUMENTATION  (2)
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  • 1
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    Unknown
    Mariner 10 ultraviolet spectrometer - Occultation experiment (1977)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: A description is given of the spectrometer which was included in the scientific payload of the Mariner 10 spacecraft to measure the extinction properties of the Mercurian atmosphere at extreme ultraviolet wavelengths. The solar intensity was monitored continuously by a grazing incidence pinhole spectrometer in 150 A bands centered at 485, 740, 810 and 895 A. This instrument provided the capability of determining atmospheric surface pressures greater than one-billionth of a millibar.
    Keywords: SPACECRAFT INSTRUMENTATION
    Type: Space Science Instrumentation; 3; May 1977
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 2
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    Unknown
    Mariner 10 ultraviolet spectrometer - Airglow experiment (1977)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: An extreme ultraviolet airglow spectrometer was flown on Mariner 10 to examine the atmosphere of Venus and Mercury. An objective grating spectrometer was used with channel electron multipliers at fixed positions in the image plane to continuously monitor the resonance-scattered emission rate of expected atomic atmospheric constituents He, H, A, Ne, O and C. A mechanical collimator placed in the entrance aperture of the spectrometer provided spectral separation of 19 A over the wavelength range from He/+/ at 304 A to C at 1657 A and provided spatial separation of 0.125 deg consistent with the spacecraft and trajectory capabilities. The calibration techniques are discussed.
    Keywords: SPACECRAFT INSTRUMENTATION
    Type: Space Science Instrumentation; 3; May 1977
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
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