Email RIS file
Bookmark
Report an Issue

Analysis of the TDRS multiple access system for possible use as an attitude control system sensor

Author
Blevins, Bruce Allyn
Published
Nov 1, 1993.
Physical Description
1 electronic document
Additional Creators
Sank, Victor J.
Online Version

Availability

I Want It
I Want It

Finding items...

Restrictions on Access
Unclassified, Unlimited, Publicly available.
Free-to-read Unrestricted online access
Summary
A member of the constellation of TDR satellites (TDRS) has experienced a failure of its prime earth sensor. Failure of the remaining earth sensor could result in the inability of the satellite to control its attitude and provide user services. Loss of the satellite would be a serious event. The multiple access (MA) antenna array on the TDRS has been proposed for use as a backup sensor for the attitude control system. This paper describes our analysis of the performance of the MA array as an interferometer used for accurate attitude determination. A least squares fit of a plane to the MA phase information appears to represent the TDRS body roll and pitch within about 0.1 deg. This is sufficient for SGL pointing and MA and SSA user services. Analytic improvements that include ionospheric correction may yield sufficient accuracy for KSA user services.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 19940016865.
Accession ID: 94N21338.
NASA. Goddard Space Flight Center, Networks Technology Conference; p 195-207.
Terms of Use and Reproduction
No Copyright.
View MARC record | catkey: 15661598