Definitive orbit determination for the HEAO-2 spacecraft.
Abstract
Precise ephemerides for the High Energy Astronomy Observatory-2 (HEAO-2) were computed to assist in the Charles Stark Draper Laboratory development of an onboard orbit determination technique. Weighted least-squares, batch orbit solutions were calculated using a high-precision Earth gravity model and an approximate model for intermittent spacecraft thrusting. With these improvements, orbit solution consistencies at the 50- to 100-meter level were attained using the Goddard Trajectory Determination System and NASA S-band tracking data.
- Publication:
-
Advances in the Astronautical Sciences
- Pub Date:
- August 1984
- Bibcode:
- 1984AdAnS..54..127S
- Keywords:
-
- Ephemerides;
- Heao 2;
- Orbit Calculation;
- Spacecraft Orbits;
- Atmospheric Models;
- Onboard Data Processing;
- Satellite Tracking;
- Thrust;
- Tracking Stations;
- Astrodynamics;
- Artificial Satellites:Ephemerides;
- Artificial Satellites:Orbit Determination;
- Ephemerides:Artificial Satellites;
- Orbit Determination:Artificial Satellites