File:SAS 2.gif
SAS_2.gif (432 × 281 pixelů, velikost souboru: 78 KB, MIME typ: image/gif)
Popisky
Popisky
Popis
[editovat]PopisSAS 2.gif |
English: SAS-B was the second in the series of small spacecraft designed to extend the astronomical studies in the X-ray, gamma-ray, ultraviolet, visible, and infrared regions. The primary objective of the SAS-B was to measure the spatial and energy distribution of primary galactic and extragalactic gamma radiation with energies between 20 and 300 MeV. The instrumentation consisted principally of a guard scintillation detector, an upper and a lower spark chamber, and a charged particle telescope. |
Datum | |
Zdroj | NASA Space Science Data Center, SAS-B, NSSDC ID: 1972-091A |
Autor | Mrs. Marjorie R. Townsend Project Manager NASA Goddard Space Flight Center, Dr. Carl E. Fichtel Project Scientist NASA Goddard Space Flight Center, Dr. Nancy G. Roman Program Scientist NASA Headquarters |
Svolení (Užití tohoto souboru) |
Images produced by NASA are usually free of copyright [...] |
SAS-B was launched from the San Marco platform off the coast of Kenya, Africa, into a nearly equatorial orbit. The orbiting spacecraft was in the shape of a cylinder approximately 59 cm in diameter and 135 cm in length. Four solar paddles were used to recharge the 6 amp-h nickel-cadmium battery and provide power to the spacecraft and telescope experiment. The spacecraft was spin stabilized, and a magnetically torqued commandable control system was used to point the spin axis of the spacecraft to any position in space within approximately 1 degree. The experiment axis lay along this axis allowing the telescope to look at any selected region of the sky with its plus or minus 30 degree acceptance aperture. The nominal spin rate was 1/12 rpm. Data were taken at 1000 bps and could be recorded on an onboard tape recorder and simultaneously transmitted in real time. The recorded data were transmitted once per orbit. This required approximately 5 minutes.
The telescope experiment was initially turned on November 20, 1972, and by November 27, 1972, the spacecraft became fully operational. The low-voltage power supply for the experiment failed on June 8, 1973. No useful scientific data were obtained after that date. With the exception of a slightly degraded star sensor, the spacecraft control section performed in an excellent manner.
Licence
[editovat]Public domainPublic domainfalsefalse |
![]() |
This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) | ![]() |
![]() |
Warnings:
|
Historie souboru
Kliknutím na datum a čas se zobrazí tehdejší verze souboru.
Datum a čas | Náhled | Rozměry | Uživatel | Komentář | |
---|---|---|---|---|---|
současná | 2. 11. 2006, 17:45 | ![]() | 432 × 281 (78 KB) | Uwe W. (diskuse | příspěvky) | == Summary == '''Small Astonomical Satellite 2 (SAS 2) ''' other Name '''Explorer 53''' source:http://nssdc.gsfc.nasa.gov/database/MasterCatalog?sc=1975-037A Category:Space telescopes Category:Explorer missions == Licensing == {{PD-USGov-NASA} |
Tento soubor nemůžete přepsat.
Využití souboru
Na Commons na soubor odkazuje tato stránka:
Globální využití souboru
Tento soubor využívají následující wiki:
- Využití na ar.wikipedia.org
- Využití na cs.wikipedia.org
- Využití na de.wikipedia.org
- Využití na en.wikipedia.org
- Využití na en.wikiversity.org
- Využití na es.wikipedia.org
- Využití na fa.wikipedia.org
- Využití na fr.wikipedia.org
- Využití na gl.wikipedia.org
- Využití na id.wikipedia.org
- Využití na it.wikipedia.org
- Využití na ja.wikipedia.org
- Využití na ka.wikipedia.org
- Využití na lb.wikipedia.org
- Využití na pl.wikipedia.org
- Využití na pt.wikipedia.org
- Využití na ru.wikipedia.org
- Využití na sk.wikipedia.org
- Využití na uk.wikipedia.org
- Využití na www.wikidata.org