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How and Why to do VLBI on GPS
In order to establish the position of the center of mass of the Earth in the International Celestial Reference Frame, observations of the Global Positioning Satellite (GPS) constellation using the IVS network are important. With a good frame-tie between the coordinates of the IVS telescopes and nearby GPS receivers, plus a common local oscillator reference signal, it should be possible to observe and record simultaneously signals from the astrometric calibration sources and the GPS satellites. The standard IVS solution would give the atmospheric delay and clock offsets to use in analysis of the GPS data. Correlation of the GPS signals would then give accurate orbital parameters of the satellites {\bf in the ICRF reference frame}, i.e. relative to the positions of the astrometric sources. This is particularly needed to determine motion of the center of mass of the earth along the rotation axis.
History
Publication title
2010 General Meeting Proceedings of the International VLBI Service for Geodesy and AstrometryEditors
D. Behrend and K.D. BaverPagination
65-69Department/School
School of Natural SciencesPublisher
National Aeronautics and Space AdministrationPlace of publication
GreenbeltEvent title
International VLBI Service for Geodesy and AstrometryEvent Venue
Hobart, Tasmania, AustraliaDate of Event (Start Date)
2010-02-07Date of Event (End Date)
2010-02-13Repository Status
- Restricted