U.S. Naval Observatory Astrometry Department

The Radio Reference Frame Image Database
Citation Instructions

If you make use of data from the Radio Reference Frame Image Database in any publication, please add the following acknowledgement:

If the RRFID data for a particular epoch has already been published by us, please cite the published reference instead. We have published VLBA data from epochs 1994JUL08(1), 1995APR12(2), 1995OCT12(2), 1997JAN10(3), and 1997JAN11(3) in ApJS and data from the Southern Hemisphere LBA campaign in AJ; the references are as follows...

Last modified: Thu Jun 3 07:42:13 EDT 2004
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