Very Long Baseline Interferometric Observations made with an Orbiting Radio Telescope
An orbiting spacecraft and ground observatories have been used to obtain interferometric observations of cosmic radio sources. The Tracking and Data Relay Satellite System (TDRSS) was used as the orbiting observatory in conjunction with two 64-meter radio telescopes at ground observatories, one in A...
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| Veröffentlicht in: | Science (American Association for the Advancement of Science) 1986-10, Vol.234 (4773), p.187-189 |
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| creator | Levy, G. S. Linfield, R. P. Ulvestad, J. S. Edwards, C. D. Jordan, J. F. Di Nardo, S. J. Christensen, C. S. Preston, R. A. Skjerve, L. J. Stavert, L. R. Burke, B. F. Whitney, A. R. Cappallo, R. J. Rogers, A. E. E. Blaney, K. B. Maher, M. J. Ottenhoff, C. H. Jauncey, D. L. Peters, W. L. Nishimura, T. Hayashi, T. Takano, T. Yamada, T. Hirabayashi, H. Morimoto, M. Inoue, M. Shiomi, T. Kawaguchi, N. Kunimori, H. |
| description | An orbiting spacecraft and ground observatories have been used to obtain interferometric observations of cosmic radio sources. The Tracking and Data Relay Satellite System (TDRSS) was used as the orbiting observatory in conjunction with two 64-meter radio telescopes at ground observatories, one in Australia and one in Japan. The quasars 1730-130 (NRAO 530), 1510-089, and 1741-038 were observed at a frequency of 2.3 gigahertz, and a maximum projected baseline of 1.4 earth diameters was achieved. All quasar observations for which valid data were acquired resulted in detected fringes. Many of the techniques proposed for a dedicated very long baseline interferometry observatory in space were used successfully in this experiment. |
| doi_str_mv | 10.1126/science.234.4773.187 |
| format | Article |
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L. ; Nishimura, T. ; Hayashi, T. ; Takano, T. ; Yamada, T. ; Hirabayashi, H. ; Morimoto, M. ; Inoue, M. ; Shiomi, T. ; Kawaguchi, N. ; Kunimori, H.</creatorcontrib><description>An orbiting spacecraft and ground observatories have been used to obtain interferometric observations of cosmic radio sources. The Tracking and Data Relay Satellite System (TDRSS) was used as the orbiting observatory in conjunction with two 64-meter radio telescopes at ground observatories, one in Australia and one in Japan. The quasars 1730-130 (NRAO 530), 1510-089, and 1741-038 were observed at a frequency of 2.3 gigahertz, and a maximum projected baseline of 1.4 earth diameters was achieved. All quasar observations for which valid data were acquired resulted in detected fringes. 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S.</creatorcontrib><creatorcontrib>Linfield, R. P.</creatorcontrib><creatorcontrib>Ulvestad, J. S.</creatorcontrib><creatorcontrib>Edwards, C. D.</creatorcontrib><creatorcontrib>Jordan, J. F.</creatorcontrib><creatorcontrib>Di Nardo, S. J.</creatorcontrib><creatorcontrib>Christensen, C. S.</creatorcontrib><creatorcontrib>Preston, R. A.</creatorcontrib><creatorcontrib>Skjerve, L. J.</creatorcontrib><creatorcontrib>Stavert, L. R.</creatorcontrib><creatorcontrib>Burke, B. F.</creatorcontrib><creatorcontrib>Whitney, A. R.</creatorcontrib><creatorcontrib>Cappallo, R. J.</creatorcontrib><creatorcontrib>Rogers, A. E. E.</creatorcontrib><creatorcontrib>Blaney, K. B.</creatorcontrib><creatorcontrib>Maher, M. J.</creatorcontrib><creatorcontrib>Ottenhoff, C. H.</creatorcontrib><creatorcontrib>Jauncey, D. L.</creatorcontrib><creatorcontrib>Peters, W. 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| identifier | ISSN: 0036-8075 |
| ispartof | Science (American Association for the Advancement of Science), 1986-10, Vol.234 (4773), p.187-189 |
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| language | eng |
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| source | American Association for the Advancement of Science; Jstor Complete Legacy; NASA Technical Reports Server |
| subjects | Antennas Astronomical and space-research instrumentation Astronomy Earth, ocean, space Energy Exact sciences and technology Frequency standards Fundamental astronomy and astrophysics. Instrumentation, techniques, and astronomical observations Observations Observatories Propagation delay Quasars Radio Radio interferometers Radio sources (Astronomical bodies) Radio sources (Astronomy) Radio telescopes Signals Spacecraft Spacecraft orbits Telescopes |
| title | Very Long Baseline Interferometric Observations made with an Orbiting Radio Telescope |
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