Citation
Abstract
Over the last 7 years, more than 35,000 correlated flux density observations, accurate to »20 percent, of 290 extragalactic radio sources have been conducted at S-band (2.3 GHz) and X-band (8.4 GHz) using the MkIII very long baseline interferometry (VLBI) system of the Deep Space Network (DSN). These ongoing observations, with typical 5-sigma detection limits of »45 mJy at S-band and »30 mJy at X-band, have been taken as part of the high-accuracy reference frame catalog required for the VLBI tracking of Galileo, Cassini, and future missions. A total flux density catalog, also accurate to »20 percent, with 1440 observations on 190 sources and typical detection limits of 0.8 Jy at S-band and 0.4 Jy at X-band, also has been created. We present here summary tables of these observations and discuss a few examples of variable sources.
Details
- Volume
- 42-131
- Published
- November 15, 1997
- Pages
- 1–25
- File Size
- 386.4 KB