Automated Operational Orbit Determination for the Ice Cloud and Land Elevation Satellite Mission
| Autor: | George H. Born, M. C. Meek, Penina Axelrad |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Ice cloud
Ground track Meteorology business.industry Pseudorange Aerospace Engineering Ephemeris Space and Planetary Science Physics::Space Physics Orbit (dynamics) Global Positioning System Environmental science Satellite Astrophysics::Earth and Planetary Astrophysics Orbit determination business Remote sensing |
| Zdroj: | Journal of Spacecraft and Rockets. 43:1048-1053 |
| ISSN: | 1533-6794 0022-4650 |
| DOI: | 10.2514/1.18131 |
| Popis: | Satellite operations depend on the ability to generate accurate predictions of a spacecraft ephemeris in a very short period of time. This operational ephemeris is used by the mission controllers to plan operations such as instrument pointing and orbit adjust maneuvers. This paper examines the methods and parameterizations necessary to achieve an accurate ephemeris quickly in an operational environment. The specific application described is for NASA's Ice Cloud and Land Elevation Satellite mission. The primary tracking data for the Ice Cloud and Land Elevation Satellite are global positioning system pseudorange and carrier phase. Near real time orbit determination accuracy with these observations is better than 2 m root-mean-square over a 24 h solution arc length. Because of stringent pointing requirements it is necessary to predict the satellite ephemeris to an accuracy of better than 400 m in-track after 48 h of prediction. This requirement has been achieved despite the significant drag perturbations on the 600 km altitude orbit. This paper presents the orbit determination and prediction techniques used in the Ice Cloud and Land Elevation Satellite operational system as well as examples of the orbit determination and prediction accuracy achieved. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|