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    Options in the global change fleet architecture provided by the presence of an EOS-A and -B (1991)
    In:  Other Sources
    Details
    Publication Date: 2013-08-29
    Description: The baseline architecture of the Global Change Technology Initiative (GCTI) fleet was established by selecting and designing spacecraft and instruments to meet the science requirements developed under the task 1 effort. While attempting to meet the temporal sampling portion of the science requirements, no consideration was given to the presence of the proposed Earth Observing System (EOS) Spacecraft that would be making many of the same measurements with many of the same instruments. After establishing the GCTI baseline independent of the EOS Spacecraft; however, it is now prudent to examine the impact of the presence of the EOS Spacecraft on the GCTI fleet. A small scope, GCTI study supplement was accomplished to assess the impact. The content and results of the supplementary study are presented.
    Keywords: SPACECRAFT DESIGN, TESTING AND PERFORMANCE
    Type: NASA. Langley Research Center, Global Change Technology Architecture Trade Study; p 293-308
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Selection of representative instruments for a global change technology architecture trade study (1991)
    In:  Other Sources
    Details
    Publication Date: 2013-08-29
    Description: The objectives of Task 2 of the Global Change Technology Initiative (GCTI) Architectural Trade Study were to select representative sets of instruments for making the science measurements specified in Task 1 and to identify instruments that, when flown together, form special complementary packages for measurement purposes. The list of representative instruments and their complementary relationships provide a payload manifest defined in terms of mass, power, size, viewing angles, data rates, etc. which can be used to focus spacecraft trade studies and the definition of a candidate GCTI fleet. Science requirements from Task 1 are given in tabular form. Numerous instruments are described, including visible-infrared radiometers, visible-infrared spectrometers, gas correction radiometers, active systems for Earth observation, Limb viewing instruments, visible-infrared and grating spectrometers, and microwave radiometers.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Global Change Technology Architecture Trade Study; p 109-179
    Format: text
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    NASA TECHNICAL REPORTS
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