Citation
Abstract
VLBI measurements of time delay and fringe frequency at 2.29 GHz on baselines of 104 km between Deep Space Network stations have been used to determine the positions of the milliarcsecond nuclei in 207 extragalactic radio sources. Estimated accuracies generally range from ~0"1 to ~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 have now been determined for 752 of these sources, Aresecond 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.
Details
- Volume
- 42-77
- Published
- May 15, 1984
- Pages
- 1–11
- File Size
- 643.7 KB