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Jason-1 and Jason-2 POD Using GPSThe Jason-2 satellite, launched in June 2008, is the latest follow-on to the successful Jason-1 altimetry satellite mission launched in December 7, 2001. Both, Jason-2 and Jason-1 are equipped with a GPS dual-frequency receiver, a laser retroreflector array, and a DORIS receiver for precise orbit determination (POD). A series of dynamic and reduced-dynamic Jason-2 orbits computed at NASA GSFC, based on GPS-only data and the std0905 standards, have been completed till cy74through cycle 74 using the IGS05 framework. These orbits, now publicly available, have been shown to agree radially at 1 cm RMS with the GSFC std0905 SLR/DORIS orbits and in comparison with orbits produced by JPL, ESA and CNES. In this paper, we describe the implementation of the IGS08 and repro1 framework for the Jason-2 and Jason-1 GPS POD processing with the NASA GSFC GEODYN software. . In our updated GPS POD, ambiguity fixing and updated time variable and static gravity fields. We also evaluate the implementation of non-tidal and degree-1 loading displacement as forward modeling to the tracking stations. Reduced-dynamic versus dynamic orbit differences are used to characterize the remaining force model errors and TRF instability. In particular, we assess their consistency radially and the stability of the altimeter satellite reference frame in the North/South direction as a proxy to assess the consistency of the reference frame.
Document ID
20120014201
Document Type
Conference Paper
Authors
Melachroinos, Stavros (SGT, Inc. Greenbelt , MD, United States)
Lemoine, Frank G. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Zelensky, Nikita P. (SGT, Inc. Greenbelt , MD, United States)
Rowlands, David D. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Luthcke, Scott B. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Beckley, Brian D. (SGT, Inc. Greenbelt , MD, United States)
Date Acquired
August 26, 2013
Publication Date
September 27, 2012
Subject Category
Earth Resources and Remote Sensing
Report/Patent Number
GSFC.ABS.6916.2012
Distribution Limits
Public
Copyright
Other