U.S. Naval Observatory VLBI Analysis Center
Abstract
This report summarizes the activities of the VLBI Analysis Center at the United States Naval Observatory for calendar year 2009. Over the course of the year, Analysis Center personnel continued analysis and timely submission of IVS-R4 databases for distribution to the IVS. During the 2009 calendar year, the USNO VLBI Analysis Center answered a call for contributions to ITRF2008 and produced two periodic global Terrestrial Reference Frame (TRF) solutions for internal use only. Earth orientation parameters (EOP), updated by the latest diurnal (IVS-R1 and IVS-R4) eperiments, were rountinely submitted to the IVS. Sinex files based upon the bi-weekly 24-hr experiments were also submitted to the IVS, and in 2009, the Analysis Center began produciton of a Sinex series based upon the 1-hr intensives. Other activities in the 2009 calendar year included continued research into celestial reference frames. Analysis Center personnel made significant contributions to the recently approved Second Realization of the ICRF (ICRF2) and continued research into future high-frequency reference frames based upon the VLBA K/Q-band experiments. VLBI Analysis Center personnel also implemented the DiFX software correlator at USNO and were involved in its testing and evaluation. Finally, a program of observations using the Very Long Baseline Array (VLBA) were initiated to test the feasibility of using the VLBA to measure UTI-UTC.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 2009
- Accession Number
- ADA542921
Entities
People
- Alan L. Fey
- David A. Boboltz
- David M. Hall
- Kerry A. Kingham
- Nicole Geiger
- Roopesh Ojha
- Zachary Dugan
Organizations
- United States Naval Observatory