NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-05-22 T04:02:16 PDT
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For refcode 1995AJ....110..880J:
Retrieve 610 NED objects in this reference.
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NED Abstract

Copyright by American Astronomical Society. Reproduced by permission
1995AJ....110..880J A RADIO REFERENCE FRAME KENNETH J. JOHNSTON AND ALAN L. FEY Remote Sensing Division, Code 7200, U.S. Naval Research Lab, Washington, DC 20375 and U.S. Naval Observatory, 3450 Massachusetts Avenue Nw, Washington, DC 20392 Electronic mail: kjj @astro.usno.navy.mil, afey@alf.usno.navy.mil NORBERT ZACHARIAS Universities Space Research Association, Washington, DC 20024 JANE L. RUSSELL Applied Research Corporation, Landover, Maryland 20785 CHOPO MA Goddard Space Flight Center, Code 921, Greenbelt, Maryland 20771 CHRISTIAN DE VEGT Hamburger Sternwarte, Universitat Hamburg, Gojenbergsweg, Harnburg, Germany JOHN E. REYNOLDS AND DAVID L. JAUNCEY Australia Telescope National Facility, CSIRO, Epping, NSW 2121, Australia BRENT A. ARCHINAL, MERRI SUE CARTER, THOMAS E. CORBIN, T. MARSHALL EUBANKS, DAVID R. FLORKOWSKI, DAVID M. HALL, AND DENNIS D. MCCARTHY U.S. Naval Observatory, 3450 Massachusetts Avenue NW, Washington, DC 20392 PETER M. MCCULLOCH AND EDWARD A. KING University of Tasmania, Hobart, Tasmania 7001, Australia GEORGE NICOLSON Hartebeesthoek Radio Astronomy Observatory, P.O. Box 143, Krugersdorp, South Africa DAVID B. SHAFFER Radiometrics Inc., 1742 Saddleback Court, Henderson, Nevada 89014 Received 1994 September 30; revised 1995 April 4 ABSTRACT A catalogue is presented based on the radio positions of 436 extragalactic sources distributed over the entire sky. The positional accuracy of the sources is better than 3 milliarcsec (mas) in both coordinates, with the majority of the sources having errors better than 1 mas. This catalogue is based upon a general solution of all applicable dual frequency 2.3 and 8.4 GHz Mark-III VLBI data available through the end of 1993 consisting of 1,015,292 pairs of group delay and phase delay rate observations. Details and positions are also given for an additional 124 objects that either need further observation or are currently unsuitable for the definition of a reference frame. The final orientation of the catalogue has been obtained by a rotation of the positions into the system of the International Earth Rotation Service and is consistent with the FK5 J2000.0 optical system, within the limits of the link accuracy.
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