Citation
Abstract
The first in a series of very long baseline interferometry feasibility demonstrations for applications to Earth Physics was conducted on January 29, 1971. In this demonstration two Goldstone tracking stations, the 26-m Echo station and the 64-m Mars station, were equipped with JPL hydrogen maser frequency systems and operated in electrically independent, although coordinated, observing modes. S-band (2.3 GHz) radio signals from 14 celestial radio sources were recorded at each station on digital magnetic tape. Later, these tapes were brought together for computer cross-correlation to produce an interferometric observable. Using the interferometer fringe frequency, a measurement of the two equatorial baseline components was made. The discrepancy between these measurements and the inter-station geodetic survey was less than 30 cm in each of these two components.
Details
- Volume
- V
- Published
- October 15, 1971
- Pages
- 45–57
- File Size
- 1.4 MB