Statistics – Computation
Scientific paper
Mar 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984tdapr..77....1m&link_type=abstract
In its The Telecommun. and Data Acquisition Rept. p 1-11 (SEE N84-25889 16-32)
Statistics
Computation
Astronomical Catalogs, Extragalactic Radio Sources, Radio Astronomy, Very Long Base Interferometry, Computation, Histograms, Position (Location), Tables (Data), Time Lag
Scientific paper
Very long base interferometry measurements of time delay and fringe frequency at 2.29 GHz on baselines of 10,000 km between Deep Space Network stations were used to determine the positions of the milliarcsecond nuclei in 207 extragalactic radio sources. Estimated accuracies generally range from approximately 0.1 to approximately 1.0, in both right ascension and declination, with all sources having uncertainties 4" in both coordinates. The observed sources are part of an all-sky VLBI catalog of milliarcsecond radio sources. Arcsecond positions are now determined for 752 of these sources. Arcsecond positions serve as a useful starting point in the construction of high-precision VLBI reference frames and are also important for unambiguous determination of optical counterparts to compact radio sources.
Jauncey David L.
Morabito David D.
Nicolson George Duncan
Preston A. R. A. R.
Slade Martin A.
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