Precision Orbit Propagator for Low Earth Orbiters
نویسندگان
چکیده
منابع مشابه
Precise Orbit Determination of Low Earth Orbiters with GPS Point Positioning
Precise orbit determination (POD) of low earth orbiters (LEOs) with GPS is becoming a standard practice in the space science community. The need for such information has been growing rapidly due to such scientific applications as radio occultation and ever increasing demands from engineering applications such as spacebased earth sensor positioning. The conventional GPSbased POD strategies rely ...
متن کاملKinematic and reduced-dynamic precise orbit determination of low earth orbiters
Various methods for kinematic and reduced-dynamic precise orbit determination (POD) of Low Earth Orbiters (LEO) were developed based on zeroand double-differencing of GPS carrier-phase measurements with and without ambiguity resolution. In this paper we present the following approaches in LEO precise orbit determination: – zero-difference kinematic POD, – zero-difference dynamic POD, – double-d...
متن کاملReal-Time Sub-cm Differential Orbit Determination of Two Low-Earth Orbiters with GPS Bias Fixing
An effective technique for real-time differential orbit determination with GPS bias fixing is formulated. With this technique, only real-time GPS orbits and clocks are needed (available from the NASA Global Differential GPS System with 10–20 cm accuracy). The onboard, realtime orbital states of user satellites (few meters in accuracy) are used for orbit initialization and integration. An extend...
متن کاملOn the Mitigation of Solar Index Variability for High Precision Orbit Determination in Low Earth Orbit
Effective satellite mission operations are directly impacted by the ability to generate accurate and precise orbit predictions. High precision orbit determination processes rely on detailed force models to propagate an orbit solution and predict future orbit behavior. While gravity forces are typically well understood, the modeling of non-conservative forces is often more challenging, causing i...
متن کاملGPS Phase-Connected, Precise Point Positioning of Low Earth Orbiters
A completely geometric approach for precise orbit determination (POD) of low earth orbiter (LEO) spacecraft has been devised by the authors which does not use dynamic models, but only data from the GPS receiver onboard the LEO and the International GPS Service (IGS) precise GPS ephemeris product. The strategy relies on combining the time-continuous measurement strength of the pseudorange and ca...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Journal of Korea Navigation Institute
سال: 2012
ISSN: 1226-9026
DOI: 10.12673/jkoni.2012.16.6.900