Format of the VLBI Data Publication

Kosuke Heki
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.

(2) Geodesists

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 coordinates. \begin{c2head}

(4) Geophysicists, Geologists

\end{c2head} 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 requirements.

Keystone project data are mainly used for the category 3 purposes but CRL should be prepared for every kind of requirments considering potential future users.

Updated on June 25, 1995. Return to CONTENTS