Space tracking system improves accuracy of geodetic measurements
Article first published online: 3 JUN 2011
©1996. American Geophysical Union. All Rights Reserved.
Eos, Transactions American Geophysical Union
Volume 77, Issue 4, pages 25–29, 23 January 1996
How to Cite
1996), Space tracking system improves accuracy of geodetic measurements, Eos Trans. AGU, 77(4), 25–29, doi:10.1029/95EO00019., , , , , , and (
- Issue published online: 3 JUN 2011
- Article first published online: 3 JUN 2011
Satellite altimetry is valuable for measuring sea surface topography and global ocean circulation, but only if the satellite's orbit can be computed within a few centimeters. A tracking system called DORIS (Doppler Orbitography and Radiopositioning Integrated by Satellite) was developed in the early 1990s for this purpose. It provides precise orbit determination and site positioning and overcomes the limitations of previous tracking systems: insufficient measurement precision and incomplete orbit coverage. DORIS' capabilities are not limited to precise orbit determination, however. It can also be used for other geodetic applications, including the measurement of large-scale tectonic motions.