An experimental GPSPAC flown on the Landsat-4 spacecraft was the first spaceborne navigation system to use the NAVSTAR Global Position System (GPS). In order to validate the accuracy and reliability of GPSPAC orbit solutions, definitive Landsat-4 ephemerides, derived from ground based tracking data, were generated and compared with GPSPAC estimates. In addition, Landsat-4 orbital solutions were reconstructed from raw GPS measurement data with a GPSPAC navigation simulator program using different Kalman filter constants. Ephemeris comparisons and simulator results are presented, as well as recommendations for the navigation filter.
Landsat/4/Global Positioning System navigation results
1984-01-01
Conference paper
No indication
English
LANDSAT/Global Positioning System Project
NTIS | 1988
|The LANDSAT/global positioning system project
NTRS | 1988
|The Landsat-D/Global Positioning System experiment
NTRS | 1980
|The Landsat-D/Global Positioning System experiment
AIAA | 1980
|Global Positioning System Navigation Algorithms
NTIS | 1977
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