G21A-0433:
A First Look at Terrestrial Reference Frame ITRF2013G Computed with Gipsy Software
Tuesday, 16 December 2014
Michael B Heflin1, Claudio Abbondanza1, Mike Chin1, Richard S Gross2, Jay W Parker1 and Xiaoping Wu1, (1)Jet Propulsion Laboratory, Pasadena, CA, United States, (2)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States
Abstract:
The ITRF2013 data set includes new sinex files from each of the four techniques DORIS, GPS, SLR, and VLBI. These files benefit from modeling upgrades implemented for reprocessing. In addition, five extra years of measurements have been acquired since 2008. We are developing GIPSY software tools to reduce the time and labor necessary to build the global reference frame. Automation is used to remove outliers and detect breaks before combining the files from each technique. All four techniques and ties are then combined to build the reference frame. We are specifically interested in the simplest configurations of sites and ties which can deliver long term accuracy at a sustainable cost.
