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Autonomous onboard navigation using tracking and data relay satellite system (TDRSS) signalsAnalyses have indicated that the NASA Tracking and Data Relay Satellite System (TDRSS) can furnish its orbital users accurate, low cost onboard navigation services via two different modes: (1) Forward-Link Scheduled Tracking, designated 'Block-I', and (2) Forward-Link Beacon Tracking, designated 'Block II'. Attention is presently given to the Block-I and Block-II system configurations, signal definition, and observation data descriptions. Projected accuracies for orbit-determination, time-determination, and frequency-determination are presented, in conjunction with user-navigation scenarios and covariance analysis results detailing error sources and magnitudes. The status of the two navigation service modes in both TDRSS and Advanced TDRSS is noted.
Document ID
19900056457
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Engel, Cheryl (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Teles, Jerome (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Elrod, Bryant D. (Stanford Telecommunications, Inc. Santa Clara, CA, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1989
Subject Category
Space Communications, Spacecraft Communications, Command And Tracking
Report/Patent Number
AAS PAPER 89-173
Meeting Information
Meeting: AAS/NASA Intl. Symposium on Orbital Mechanics and Mission Design
Location: Greenbelt, MD
Country: United States
Start Date: April 24, 1989
End Date: April 27, 1989
Accession Number
90A43512
Distribution Limits
Public
Copyright
Other

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