The emphasis of this grant was focused on precision ephemerides for the Global Positioning System (GPS) satellites for geodynamics applications. During the period of this grant, major activities were in the areas of thermal force modeling, numerical integration accuracy improvement for eclipsing satellites, analysis of GIG '91 campaign data, and the Southwest Pacific campaign data analysis
The orbital error is one of the errors in GPS which affect the accuracy of GPS positioning. In this ...
The goal of this project is to improve our current understanding of GPS error sources associated wit...
An effort to improve station position recovery using broadcast ephemeris in Doppler data reduction w...
Based on the research, the area of precise ephemerides for GPS satellites, the following observation...
The required knowledge of the Global Positioning System (GPS) satellite position accuracy can vary d...
Effort during the period form January 1, 1993 to December 31, 1993 were in the following areas: GPS ...
The University of Texas Center for Space Research research efforts under NASA Grant No. NAG-1936 fro...
Data collected from a worldwide 1992 experiment were processed at JPL to determine precise orbits fo...
The establishment of the International GPS Service for Geodynamics (IGS) in 1994 and the rapid dev...
The establishment of the International GPS Service for Geodynamics (IGS) in 1994 and the rapid dev...
The establishment of the International GPS Service for Geodynamics (IGS) in 1994 and the rapid dev...
The goal of using an orbital gradiometer mission to provide an accurate (1 to 2 mgal), high resoluti...
The NAVSTAR Global Positioning System (GPS) has been under development by the US Department of Defen...
We compare the broadcast ephemerides from Global Positioning Satellites (GPS) to the postprocessed e...
High precision orbit determination of Global Positioning System (GPS) satellites is a key requiremen...
The orbital error is one of the errors in GPS which affect the accuracy of GPS positioning. In this ...
The goal of this project is to improve our current understanding of GPS error sources associated wit...
An effort to improve station position recovery using broadcast ephemeris in Doppler data reduction w...
Based on the research, the area of precise ephemerides for GPS satellites, the following observation...
The required knowledge of the Global Positioning System (GPS) satellite position accuracy can vary d...
Effort during the period form January 1, 1993 to December 31, 1993 were in the following areas: GPS ...
The University of Texas Center for Space Research research efforts under NASA Grant No. NAG-1936 fro...
Data collected from a worldwide 1992 experiment were processed at JPL to determine precise orbits fo...
The establishment of the International GPS Service for Geodynamics (IGS) in 1994 and the rapid dev...
The establishment of the International GPS Service for Geodynamics (IGS) in 1994 and the rapid dev...
The establishment of the International GPS Service for Geodynamics (IGS) in 1994 and the rapid dev...
The goal of using an orbital gradiometer mission to provide an accurate (1 to 2 mgal), high resoluti...
The NAVSTAR Global Positioning System (GPS) has been under development by the US Department of Defen...
We compare the broadcast ephemerides from Global Positioning Satellites (GPS) to the postprocessed e...
High precision orbit determination of Global Positioning System (GPS) satellites is a key requiremen...
The orbital error is one of the errors in GPS which affect the accuracy of GPS positioning. In this ...
The goal of this project is to improve our current understanding of GPS error sources associated wit...
An effort to improve station position recovery using broadcast ephemeris in Doppler data reduction w...