GSI Geodetic VLBI

Welcome to the home page of the VLBI Group of the Geospatial Information Authority of Japan.
The Very Long Baseline Interferometry (VLBI) program is a component of GSI's Geodetic Department. The VLBI group implements VLBI observation, correlation processing, and analysis in cooperation with the International VLBI Service for Geodesy and Astrometry (IVS).

Geodetic Observing Program in Japan

Data acquisition, correlator, and analysis files for each session.

24 hours VLBI sessions

2012-2015 Session Index
2008-2011 Session Index
2004-2007 Session Index
2000-2003 Session Index
1996-1999 Session Index
1984-1995 Session Index

1 hour VLBI sessions (UT1 sessions)

2013 Intensive VLBI Session Index
2012 Intensive VLBI Session Index
2011 Intensive VLBI Session Index
2010 Intensive VLBI Session Index
2009 Intensive VLBI Session Index
2008 Intensive VLBI Session Index
2007 Intensive VLBI Session Index
2006 Intensive VLBI Session Index
2005 Intensive VLBI Session Index
2004 lntensive VLBI Session Index
2003 lntensive VLBI Session Index
2002 Intensive VLBI Session Index

Geodetic VLBI program introduction

Documents that describe the program for Geodetic VLBI in Japan.

JADE experiments
JAPAN-TIE experiments