Spektr-R - a new radio telescope! |
Spektr-R - a new radio telescope! |
Sep 17 2011, 12:16 PM
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#16
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Newbie Group: Members Posts: 16 Joined: 18-July 11 Member No.: 6068 |
QUOTE - The H-maser (atomic clock) was turned on and internal test has shown that the clock works properly, its stability is reported to be within the specs. - Tests of "VIRK", the system which includes high-gain 1.5-m diameter antennae and is used to contact with the tracking station in Pushchino, continue. The so-called "open loop", the tone signal at 8 GHz, was successfully detected in Pushchino and is being used to perform Doppler measurements of the orbit parameters. The 15 GHz tone signal was also successfully detected. - Today, the first system temperature measurements were performed for the Australian-made 18 cm astronomical receiver while the space telescope was pointed on a cold sky; the system temperature is estimated to be about 42 K which is close to receiver's specifications. Plans for the near future: - VIRK pointing correction measurements and 15 GHz data link tests, - performance measurements for all the other astronomical receivers of the 92, 6, and 1.3 cm bands, - Cassiopea A first light single-dish radio astronomical observations including space radio telescope efficiency measurements. http://www.asc.rssi.ru/radioastron/news/news.html |
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