NOVA-1 - The 'drag-free' navigation satellite
Abstract
The NOVA 1 'drag-free' TRANSIT constellation satellite incorporates the DISturbance COmpensation System (DISCOS) feature, which continuously corrects for the perturbing effect of atmospheric drag and radiation pressure on the along-track motion of the spacecraft in order to provide better ephemerides broadcast predictions by the spacecraft for the client navigator/surveyor. Predictions extending up to eight days show successful DISCOS system drag and radiation pressure compensation to a level of 10 to the -11th g. A history of thruster firing data has been collected and analyzed in order to recover the average drag force and solar radiation force amplitudes.
- Publication:
-
In: National Aerospace Meeting
- Pub Date:
- 1982
- Bibcode:
- 1982naae.meet...26E
- Keywords:
-
- Discos (Satellite Attitude Control);
- Error Correcting Devices;
- Navigation Satellites;
- Nova Satellites;
- Aerodynamic Drag;
- Amplitudes;
- Atmospheric Effects;
- Time Response;
- Launch Vehicles and Space Vehicles