VLBI astrometry and the Hipparcos link to the extragalactic reference frame
DOI: 10.1016/0273-1177(91)90481-X
Bibcode: 1991AdSpR..11b.129L
Lestrade, J. -F.; Preston, R. A.; Gabuzda, D. C.; Phillips, R. B.
United States
Abstract
The link between the optical and VLBI extragalactic reference frames is undertaken with a long-term program of differential VLBI astrometric observations of 12 radio stars. The status of the program and an assessment of the astrometric accuracy of these observations are presented.
1991
•
Advances in Space Research
Hipparcos
0