Satellite Orbit Determination Using Gps

Up to 53 constrained igs fiducial tracking sites in the igs 2000 epoch 1998 0 reference frame available 3 to 6 days from the date.

Satellite orbit determination using gps.

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. Ngs gps orbit determination positioning america for the future national oceanic and atmospheric administration national ocean service national geodetic survey ngs orbit products i. A demonstration using the sac c and champ spacecraft by a. Munson in proceedings of ion gps 2002 the 15th international technical meeting of the satellite division of the institute of navigation portland oregon sept.

Gnss has many advantages for the tracking of satellites orbiting the earth. 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. This cannot be achieved by any ground based tracking station. There is increasing concern about the uncombined uc observation model in the field of global navigation satellite system gnss.

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 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. Toward decimeter level real time orbit determination. According to the analysis results the onboard receiver can track 6 8 gps satellites and the minimum and maximum carrier to noise spectral.

Constrained precise gps orbit. 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.