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The standardized functional support sectional for the Small Astronomy Satellite (SAS)The standardized functional support section for the improved Small Astronomy Satellite (SAS) spacecraft, which can be used virtually without change for a wide variety of experimental packages and missions, is described. This functional support section makes the spacecraft remarkably flexible for a small satellite. Able to point its thrust axis to any direction in space, it can also spin or slow its outer body rotation to zero for star- or earth-locked pointing of side-viewing experiments. It features a reprogrammable telemetry system, a delayed command system, and an improved control system. Experiments can be built independently and attached to the SAS spacecraft just prior to final acceptance testing and launch. The spacecraft subsystems are described in detail. Included are a summary of the spacecraft characteristics, special design considerations, project reliability requirements, and environmental test conditions. It is intended that this new functional support section afford virtual off-the-shelf availability of the SAS spacecraft to independently built experiments, thus providing quick response time and minimum cost in meeting a wide variety of experimenter needs.
Document ID
19740019250
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Technical Note (TN)
Authors
Townsend, M. R. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
September 3, 2013
Publication Date
June 1, 1974
Subject Category
Space Vehicles
Report/Patent Number
NASA-TN-D-7725
G-7454
Accession Number
74N27363
Funding Number(s)
PROJECT: RTOP 039-23-01-01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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