Format of the VLBI Data Publication
National Astronomical Observatory
Mizusawa, Iwate 023, Japan
There are variety of users who might be interested in geodetic VLBI
data outputs and the data should be handed over to them in appropriate
formats. They are to be classified as follows;
(1) VLBI researchers
Those who need a VLBI database to perform their own parameter estimation.
Conventional Mark-3 type database will do.
Those who want to tie their GPS results to VLBI coordinates/velocities.
Solution (technique) Independent Exchange (SINEX) format, which is usable for
both VLBI and GPS, might be pertinent for this purpose.
(3) Seismologists (earthquake prediction researcher)
Those who want to monitor time series of daily baseline vectors for
possible earthquake precursors (the detection could be retrospective).
Time series should be given in local coordinates as well as geocentric
(4) Geophysicists, Geologists
Those interested in site velocities and their tectonic implications.
Changing rates of the baseline vectors or site velocities directly
estimated by connecting multiple VLBI databases would satisfy the
Keystone project data are mainly used for the category 3 purposes but
CRL should be prepared for every kind of requirments considering potential
Updated on June 25, 1995.
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