Automated analysis of Kokee-Wettzell intensive sessions
Niko Kareinen, Thomas Hobiger, Rüdiger Haas · Chalmers Research (Chalmers University of Technology) · 2015
We present results from an automated analysis of IVS intensive sessions, carried out between 2001-2015 on the Kokee-Wettzell baseline.The analysis is based on the version 1 X-and S-band databases in Mark3 format, which means that ambiguity resolution and ionosphere correction need to be done within the automated analysis chain.We use the c5++ VLBI analysis software and process all available databases using several different analysis configurations and investigate the impact of a priori information on the obtained UT1-UTC estimates.We also assess whether external information, i.e. cable delay and weather data extracted from the station log files, is required in order to obtain highly accurate UT1-UTC products.This allows us to conclude whether the availability of external information is crucial for real-time analysis of intensive sessions, or if empirical models can be applied without a significant degradation of the target parameters.