| タイトル | Communications considerations of the very long baseline interferometry demonstration using the tracking and data relay satellite system |
| 著者（英） | Edwards, C. D.; Linfield, R. P.; Blaney, K.; Levy, G. S.; Jordan, J. F.; Preston, R. A.; Di Nardo, S. J.; Hayashi, T.; Skjerve, L.; Christensen, C. S. |
| 著者所属（英） | Jet Propulsion Lab., California Inst. of Tech.; NASA Goddard Space Flight Center; Tokyo Univ. |
| 発行日 | 1986-10-01 |
| 言語 | eng |
| 内容記述 | A desire for increased angular resolution at microwave frequencies has led to the development of radio telescopes with very lage effective apertures. Very long baseline interferometry (VLBI) has made it possible to synthesize telescopes with effective dimensions of a large fraction of an earth diameter. By using a satellite-borne radio telescope as part of a VLBI array, the dimensions of the earth cease to be a limitation. A demonstration was performed to show that the orbiting VLBI (OVLBI) concept is feasible. The Tracking and Data Relay Satellite System (TDRSS) was used as the orbiting element of the VLBI demonstration. Stability tests were made before the observations to determine the suitability of the TDRSS for OVLBI use. The first successful OVLBI observations were performed using the 64-m antenna observatories of NASA's Deep Space Network in Tidbinbilla, Australia, and of the Institute for Space and Astronautical Science in Usuda, Japan in conjunction with the TDRSS. |
| NASA分類 | SPACE COMMUNICATIONS, SPACECRAFT COMMUNICATIONS, COMMAND AND TRACKING |
| レポートNO | 87A16002
IAF PAPER 86-302 |
| 権利 | Copyright |
|
