NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login
Back to Results
Joint JSC/GSFC two-TDRS navigation certification results for STS-29, STS-30, and STS-32The procedures used and the results obtained in the joint Johnson Space Center (JSC)/Goddard Space Flight Center (GSFC) navigation certification of the two-Tracking and Data Relay Satellite (TDRS) S-band tracking configuration for support of low- to medium-inclination (28.5 to 62 degrees) Shuttle missions (STS-29 and STS-30) and Shuttle rendezvous missions (STS-32) are described. The objective of this certification effort was to certify the two-TDRS configuration for nominal Space Transportation System (STS) on-orbit navigation support, thereby making it possible to significantly reduce the ground tracking support requirements for routine STS on-orbit navigation. JSC had the primary responsibility for certification of the two-TDRS configuration for STS support, and GSFC supported the effort by performing Ground Network (GN) and Space Network (SN) tracking data evaluation, parallel orbit solutions, and solution comparisons. In the certification process, two types of orbit determination solutions were generated by JSC and by GSFC for each tracking arc evaluated, one type using TDRS-East and TDRS-West tracking data combined with ground tracking data (the reference solutions) and one type using only TDRS-East and TDRS-West tracking data. The two types of solutions were then compared to determine the maximum position differences over the solution arcs and whether these differences satisfied the navigation certification criteria. The certification criteria were a function of the type of Shuttle activity in the tracking arc, i.e., quiet, moderate, or active. Quiet periods included no attitude maneuvers or ventings; moderate periods included one or two maneuvers or ventings; and active periods included more than two maneuvers or ventings. The results of the individual JSC and GSFC certification analyses for the STS-29, STS-30, and STS-32 missions and the joint JSC/GSFC conclusions regarding certification of the two-TDRS S-band configuration for STS support are presented.
Document ID
19910007768
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Schmidt, Thomas G. (Rockwell Space Operations Co. Houston, TX., United States)
Brown, Edward T. (Rockwell Space Operations Co. Houston, TX., United States)
Murdock, Valerie E. (Rockwell Space Operations Co. Houston, TX., United States)
Cappellari, James O., Jr. (NASA Lyndon B. Johnson Space Center Houston, TX., United States)
Smith, Evan A. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Schmitt, Mark W. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Omalley, James W. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Lowes, Flora B. (NASA Lyndon B. Johnson Space Center Houston, TX., United States)
Joyce, James B. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
September 6, 2013
Publication Date
December 1, 1990
Publication Information
Publication: Flight Mechanics(Estimation Theory Symposium, 1990
Subject Category
Astrodynamics
Accession Number
91N17081
Funding Number(s)
CONTRACT_GRANT: NAS9-18000
CONTRACT_GRANT: NAS5-31500
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Related Records

There are no records associated with this record.
No Preview Available