Abstract The “Radioastron” mission is being designed to achieve very high angular resolution as fine as 5 microarcsec and will study radiosources with very high brightness temperature such as pulsar, quasars, active galactic nucleii, galactic and extragalactic water vapour and hydroxyl masers. The mission will form an orbiting radio interferometer between a satellite radio telescope 10m in diameter and several large ground-based radio telescopes. The orbit of the satellite makes it possible to have baselines from several thousands to more than a hundred thousand kilometers. The satellite will be equipped with 4 dual polarization receivers at 327, 1665, 4830 and 22235 MHz with local oscillators phase-locked to a ground-based hydrogen maser frequency standard via a microwave link. The IF signals from the receivers will be transmitted to the ground by a 128 Mbit/s rate data link. Participation of large radio telescopes from many countries is envisaged.
Technical aspects of Radioastron
Advances in Space Research ; 11 , 2 ; 451
1991-01-01
1 pages
Article (Journal)
Electronic Resource
English
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