A Seasat data arc is analyzed in order to: gain experience in computing accurate orbits from laser ranging data; assess gravity and surface force model accuracy; determine the positions of five European Doppler stations relative to a global NASA ground station coordinate solution; and study the effects of European Doppler range-rate data on the orbital solution. The PGS S3 and S4 models yield better results than GEM 9 or GEM 10B. More data must be analyzed since one arc is not representative, especially considering that orbital coverage in that arc is not good.
Preliminary Results of Seasat Orbit Determinations from Laser Range and European Doppler Range-Rate Observations
1981
19 pages
Report
No indication
English
Spacecraft Trajectories & Flight Mechanics , Doppler radar , Laser range finders , Orbit calculation , Orbital position estimation , Range and range rate tracking , Seasat satellites , Data reduction , Geodetic coordinates , Ground stations , Mathematical models , Position (Location) , Satellite tracking , Tracking stations , Foreign technology
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