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Operations analysis (study 2.1). Program SEPSIM (solar electric propulsion stage simulation)Program SEPSIM is a FORTRAN program which performs deployment, servicing, and retrieval missions to synchronous equatorial orbit using a space tug with a continuous low thrust upper stage known as a solar electric propulsion stage (SEPS). The SEPS ferries payloads back and forth between an intermediate orbit and synchronous orbit, and performs the necessary servicing maneuvers in synchronous orbit. The tug carries payloads between the orbiter and the intermediate orbit, deploys fully fueled SEPS vehicles, and retrieves exhausted SEPS vehicles when, and if, required. The program is presently contained in subroutine form in the Logistical On-orbit VEhicle Servicing (LOVES) Program, but can also be run independently with the addition of a simple driver program.
Document ID
19740025147
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Lang, T. J. (Aerospace Corp. El Segundo, CA, United States)
Date Acquired
September 3, 2013
Publication Date
June 28, 1974
Subject Category
Space Sciences
Report/Patent Number
ATR-74(7341)-2
NASA-CR-140027
Accession Number
74N33260
Funding Number(s)
CONTRACT_GRANT: NASW-2575
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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