NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
A method for computing instantaneous downtrack error from TDRS Doppler residualsA simple method has been developed which calculates the instantaneous downtrack error in an orbiting vehicle's state vector from TDRS (Tracking and Data Relay Satellite) Doppler observation residuals. The downtrack error is expressed as a delta-time correction to the timetag of the vehicle's state vector. The method requires only a few easily obtained parameters and is easy to implement. This paper details the derivation of computing a delta-time correction from TDRS Doppler observation residuals and evaluates the method's assumptions and limitations. The results presented show that typically the method computes delta-time corrections that are less than five percent off from the true timetag error for Doppler observation residuals within twenty minutes of closest approach to the TDRS.
Document ID
19930033944
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Haas, Franklin M., Jr.
(NASA Johnson Space Center; Rockwell Space Operations Co. Houston, TX, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1991
Publication Information
Publication: In: Spaceflight mechanics 1991; Proceedings of the 1st AAS(AIAA Annual Spaceflight Mechanics Meeting, Houston, TX, Feb. 11-13, 1991. Pt. 2 (A93-17901 05-13)
Publisher: Univelt, Inc.
Subject Category
Space Communications, Spacecraft Communications, Command And Tracking
Report/Patent Number
AAS PAPER 91-152
Accession Number
93A17941
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available