Concepedia

Publication | Closed Access

VLBI using a telescope in Earth orbit. I - The observations

DOI

36

Citations

0

References

1989

Year

G. S. Levy, R. P. Linfield, C. D. Edwards, J. S. Ulvestad, Jr. Jordan J. F., S. J. Dinardo, C. S. Christensen, R. A. Preston, L. J. Skjerve, L. R. Stavert,
The Astrophysical Journal

Abstract

A VLBI experiment has been conducted at a frequency of 2.3 GHz, using an antenna in Earth orbit. The observational procedure for the orbiting antenna, part of the Tracking and Data Relay Satellite System, is described. Nonstandard VLBI procedures were necessary to obtain adequate phase stability and to correlate the data. Several technical concepts necessary for a dedicated space VLBI mission were successfully tested.