Satellite Orbit Determination Using Gps

A demonstration using the sac c and champ spacecraft by a.

Satellite orbit determination using gps.

There is increasing concern about the uncombined uc observation model in the field of global navigation satellite system gnss. The global positioning system gps originally navstar gps is a satellite based radionavigation system owned by the united states government and operated by the united states space force. This study analyzes the quality of onboard data of tracking signals from gps satellites on the far side of the earth and determines the orbit of the geostationary satellite using code and carrier phase observations with 30 h and 3 day orbit arc length. Toward decimeter level real time orbit determination.

Constrained precise gps orbit. Ngs gps orbit determination positioning america for the future national oceanic and atmospheric administration national ocean service national geodetic survey ngs orbit products i. This cannot be achieved by any ground based tracking station. According to the analysis results the onboard receiver can track 6 8 gps satellites and the minimum and maximum carrier to noise spectral.

First a uc observation model suitable for multi gnss pod. The baseline for the pso is a zero difference procedure using gps satellite orbits clocks and earth rotation parameters erps from code center for orbit determination in europe one of the igs international gnss service analysis centers. It provides unsurpassed observability because low earth satellites are able to track six or more gps satellites with tracking arcs amounting to about half of the user satellite orbit. It is one of the global navigation satellite systems gnss that provides geolocation and time information to a gps receiver anywhere on or near the earth where there is an unobstructed line of sight to.

The performance test of real time orbit determination using ukf was implemented using the cosmic navigation solution data in the dsp based spaceborne gps receiver. Munson in proceedings of ion gps 2002 the 15th international technical meeting of the satellite division of the institute of navigation portland oregon sept.