The report documents the procedure for generating a real world ephemeris tape to be used by The Aerospace Corporation and selected contractors in Phase 0 of the Autonomous Navigation System (ANS) contract. A real world geopotential model was developed by modifying a state-of-the-art reference geopotential, using Kaula's degree variances as a guide. To obtain real world atmosphere data, the acceleration profile experienced by the first in a recent series of low altitude satellites to have an on-board low-g accelerometer was suitably scaled. The resulting ephemeris is displayed and subjected to various consistency tests. (Author)
Techniques for Generating a 'Real World' Ephemeris
1971
118 pages
Report
No indication
English
Spacecraft Trajectories & Flight Mechanics , Low-orbit trajectories , Satellites(Artificial) , Mathematical models , Inertial navigation , Atmosphere models , Gravity , Drag , Ephemerides , Special functions(Mathematical) , Computer programs , Geopotential , ANS(Autonomous Navigation System) , Autonomous navigation system
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