Satellite Orbit Determination Using Gps

Ngs gps orbit determination positioning america for the future national oceanic and atmospheric administration national ocean service national geodetic survey ngs orbit products i.

Satellite orbit determination using gps.

Constrained precise gps orbit. There is increasing concern about the uncombined uc observation model in the field of global navigation satellite system gnss. 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. 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.

Gnss has many advantages for the tracking of satellites orbiting the earth. A demonstration using the sac c and champ spacecraft by a. 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. This cannot be achieved by any ground based tracking station.

Based on the global positioning system gps and the third generation beidou navigation satellite system bds 3 this study processed the uc precision orbit determination pod for single and dual systems. Munson in proceedings of ion gps 2002 the 15th international technical meeting of the satellite division of the institute of navigation portland oregon sept. According to the analysis results the onboard receiver can track 6 8 gps satellites and the minimum and maximum carrier to noise spectral. 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.

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. First a uc observation model suitable for multi gnss pod.