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OPS MCC level B/C formulation requirements: Area targets and space volumes processorThe level B/C mathematical specifications for the area targets and space volumes processor (ATSVP) are described. The processor is designed to compute the acquisition-of-signal (AOS) and loss-of-signal (LOS) times for area targets and space volumes. The characteristics of the area targets and space volumes are given. The mathematical equations necessary to determine whether the spacecraft lies within the area target or space volume are given. These equations provide a detailed model of the target geometry. A semianalytical technique for predicting the AOS and LOS time periods is disucssed. This technique was designed to bound the actual visibility period using a simplified target geometry model and unperturbed orbital motion. Functional overview of the ATSVP is presented and it's detailed logic flow is described.
Document ID
19790020035
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Bishop, M. J., Jr. (NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Date Acquired
September 3, 2013
Publication Date
July 1, 1979
Subject Category
Astronautics (General)
Report/Patent Number
JSC-16029
NASA-TM-80485
REPT-79-FM-26
Accession Number
79N28206
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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