Small Astronomy Satellite 3 (original) (raw)
El Small Astronomy Satellite 3 (SAS 3, també conegut com el SAS-C abans del llançament) va ser un telescopi espacial d'astronomia de raigs X de la NASA. Va funcionar del 7 de maig de 1975 a l'abril de 1979. Va cobrir el rang de raigs X amb quatre experiments a bord. El satèl·lit, va ser construït per l' (APL) de la Johns Hopkins University, va ser proposat i operat pel Center for Space Research (CSR) del MIT. Va ser llançat en un vehicle Scout des de la plataforma de llançament italiana San Marco prop de Mombasa, Kenya, en una baixa òrbita terrestre gairebé equatorial. També va ser conegut com a Explorer 53, com a part del programa Explorer de la NASA.
| Property | Value |
|---|---|
| dbo:SpaceMission/missionDuration | 1461.0 |
| dbo:abstract | El Small Astronomy Satellite 3 (SAS 3, també conegut com el SAS-C abans del llançament) va ser un telescopi espacial d'astronomia de raigs X de la NASA. Va funcionar del 7 de maig de 1975 a l'abril de 1979. Va cobrir el rang de raigs X amb quatre experiments a bord. El satèl·lit, va ser construït per l' (APL) de la Johns Hopkins University, va ser proposat i operat pel Center for Space Research (CSR) del MIT. Va ser llançat en un vehicle Scout des de la plataforma de llançament italiana San Marco prop de Mombasa, Kenya, en una baixa òrbita terrestre gairebé equatorial. També va ser conegut com a Explorer 53, com a part del programa Explorer de la NASA. (ca) Der Small Astronomy Satellite 3 (auch SAS-C, SAS-3 oder Explorer 53) war ein Röntgensatellit der NASA. (de) Small Astronomy Satellite 3 ou SAS 3 (également SAS-C ou Explorer 53) est un petit observatoire spatial X développé par la NASA dans le cadre de son programme Explorer. Lancé en 1975, il est surtout connu pour la découverte d'une douzaine de sursauteurs X . (fr) Small Astronomy Satellite 3 (SAS 3, juga dikenal sebagai SAS-C sebelum peluncuran) adalah teleskop ruang angkasa astronomi X-ray NASA. Ini berfungsi Dari 7 Mei 1975 hingga April 1979 ini meliputi rentang X-ray dengan empat percobaan di atas kapal. Satelit, dibangun oleh Johns Hopkins University Applied Physics Laboratory (APL), telah diusulkan dan dioperasikan oleh MIT Center for Space Research (CSR). Ini diluncurkan pada kendaraan Scout dari Italia / Kenya San Marco Platform peluncuran dekat Mombasa, Kenya, menjadi rendah Bumi, orbit hampir khatulistiwa. Hal itu juga dikenal sebagai Explorer 53, sebagai bagian dari program Explorer NASA. (in) The Small Astronomy Satellite 3 (SAS 3, also known as SAS-C before launch) was a NASA X-ray astronomy space telescope. It functioned from May 7, 1975 to April 1979. It covered the X-ray range with four experiments on board. The satellite, built by the Johns Hopkins University Applied Physics Laboratory (APL), was proposed and operated by MIT's Center for Space Research (CSR). It was launched on a Scout vehicle from the Italian San Marco launch platform near Mombasa, Kenya, into a low-Earth, nearly equatorial orbit. It was also known as Explorer 53, as part of NASA's Explorer program. The spacecraft was 3-axis stabilized with a momentum wheel that was used to establish stability about the nominal rotation, or z-axis. The orientation of the z-axis could be altered over a period of hours using magnetic torque coils that interacted with the Earth's magnetic field. Solar panels charged batteries during the daylight portion of each orbit, so that SAS 3 had essentially no expendables to limit its lifetime beyond the life of the tape recorders, batteries, and orbital drag. The spacecraft typically operated in a rotating mode, spinning at one revolution per 95-min orbit, so that the LEDs, tube and slat collimator experiments, which looked out along the y-axis, could view and scan the sky almost continuously. The rotation could also be stopped, allowing extended (up to 30 min) pointed observations of selected sources by the y-axis instruments. Data were recorded on board by magnetic tape recorders, and played back during station passes every orbit. SAS 3 was commanded from the NASA Goddard Space Flight Center (GSFC) in Greenbelt MD, but data were transmitted by modem to MIT for scientific analysis, where scientific and technical staff were on-duty 24 hours a day. The data from each orbit were subjected to quick-look scientific analysis at MIT before the next orbital station pass, so the science operational plan could be altered by telephoned instruction from MIT to GSFC in order to study targets in near real-time. (en) SAS-3 (acronimo inglese per Small Astronomy Satellite 3, ovvero piccolo satellite per l'astronomia 3), a volte citato anche come SAS-C o Explorer 53, è stato un satellite artificiale messo in orbita dalla NASA nell'ambito del Programma Explorer. Lanciato il 7 maggio 1975 dalla piattaforma San Marco, posizionato su una LEO caratterizzata da un apogeo di 516 km e da un perigeo di 509, terminò la sua vita utile il 7 aprile 1979. SAS-3 era equipaggiato con 4 strumenti di rilevazione per raggi X, ciascuno con una diversa tecnologia di collimazione, che gli permettevano di determinare la posizione di sorgenti a raggi X con una precisione di 15 arcosecondi. Era inoltre dotato di un sistema di controllo del puntamento che consentiva una limitata variazione, comandata dalla Terra, dell'asse e della velocità di rotazione. Obiettivi della missione furono lo studio di alcune sorgenti X già note (tra cui l'Ammasso della Vergine e Scorpius X-1), l'individuazione di sorgenti non conosciute, l'osservazione di eventuali fenomeni transitori quali novae a raggi-x e brillamenti. (it) SAS-3 — третий спутник в серии малых астрономических спутников (Small Astronomical Satellites, SAS) НАСА, запущенный с итальянско-кенийской платформы Сан-Марко в Индийском океане 5 мая 1975 года. Спутник, сделанный в Университете им. Джонса Хопкинса (Johns Hopkins University) и Лаборатории прикладной физики (Applied Physics Laboratory), был предложен в Массачусетском технологическом институте; оттуда же велось его управление в течение всего периода работы. Обсерватория несла 4 инструмента для исследования неба в рентгеновском диапазоне. Спутник имел возможность трёхосной стабилизации, обеспечиваемой гироскопами относительно оси z спутника. Ориентация оси z (оси вращения спутника) могла быть изменена в течение часов с использованием магнитных катушек, которые взаимодействовали с магнитным полем Земли. Солнечные панели заряжали аккумуляторы обсерватории в течение дневной части его орбиты. Таким образом спутник фактически не имел расходных материалов для своей работы на орбите, кроме естественной деградации орбиты, времени жизни аккумуляторов и аппаратуры, записывающей измерения на магнитную ленту. Обычный режим работы спутника — вращающийся, с частотой около одного оборота в орбиту (95 минут). В таком режиме детекторы LED, TCE, SCE, чьё поле зрения было направлено вдоль оси Y, сканировали небо. Вращение могло быть остановлено для проведения относительно длительных (до 30 минут) наблюдений этими инструментами. Измерения записывались на магнитную ленту и проигрывались для передачи на Землю во время пролёта приёмных станций. Передача команд и приём научной информации велся в Центре космических полётом им Годдарда НАСА (Гринбелт, Мэрилэнд, США), однако данные переправлялись по модему в МТИ, где они обрабатывались в реальном времени. Планирование наблюдений на последующую орбиту проводилось с учётом результатов предыдущей. (ru) |
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| rdfs:comment | El Small Astronomy Satellite 3 (SAS 3, també conegut com el SAS-C abans del llançament) va ser un telescopi espacial d'astronomia de raigs X de la NASA. Va funcionar del 7 de maig de 1975 a l'abril de 1979. Va cobrir el rang de raigs X amb quatre experiments a bord. El satèl·lit, va ser construït per l' (APL) de la Johns Hopkins University, va ser proposat i operat pel Center for Space Research (CSR) del MIT. Va ser llançat en un vehicle Scout des de la plataforma de llançament italiana San Marco prop de Mombasa, Kenya, en una baixa òrbita terrestre gairebé equatorial. També va ser conegut com a Explorer 53, com a part del programa Explorer de la NASA. (ca) Der Small Astronomy Satellite 3 (auch SAS-C, SAS-3 oder Explorer 53) war ein Röntgensatellit der NASA. (de) Small Astronomy Satellite 3 ou SAS 3 (également SAS-C ou Explorer 53) est un petit observatoire spatial X développé par la NASA dans le cadre de son programme Explorer. Lancé en 1975, il est surtout connu pour la découverte d'une douzaine de sursauteurs X . (fr) Small Astronomy Satellite 3 (SAS 3, juga dikenal sebagai SAS-C sebelum peluncuran) adalah teleskop ruang angkasa astronomi X-ray NASA. Ini berfungsi Dari 7 Mei 1975 hingga April 1979 ini meliputi rentang X-ray dengan empat percobaan di atas kapal. Satelit, dibangun oleh Johns Hopkins University Applied Physics Laboratory (APL), telah diusulkan dan dioperasikan oleh MIT Center for Space Research (CSR). Ini diluncurkan pada kendaraan Scout dari Italia / Kenya San Marco Platform peluncuran dekat Mombasa, Kenya, menjadi rendah Bumi, orbit hampir khatulistiwa. Hal itu juga dikenal sebagai Explorer 53, sebagai bagian dari program Explorer NASA. (in) The Small Astronomy Satellite 3 (SAS 3, also known as SAS-C before launch) was a NASA X-ray astronomy space telescope. It functioned from May 7, 1975 to April 1979. It covered the X-ray range with four experiments on board. The satellite, built by the Johns Hopkins University Applied Physics Laboratory (APL), was proposed and operated by MIT's Center for Space Research (CSR). It was launched on a Scout vehicle from the Italian San Marco launch platform near Mombasa, Kenya, into a low-Earth, nearly equatorial orbit. It was also known as Explorer 53, as part of NASA's Explorer program. (en) SAS-3 (acronimo inglese per Small Astronomy Satellite 3, ovvero piccolo satellite per l'astronomia 3), a volte citato anche come SAS-C o Explorer 53, è stato un satellite artificiale messo in orbita dalla NASA nell'ambito del Programma Explorer. Lanciato il 7 maggio 1975 dalla piattaforma San Marco, posizionato su una LEO caratterizzata da un apogeo di 516 km e da un perigeo di 509, terminò la sua vita utile il 7 aprile 1979. (it) SAS-3 — третий спутник в серии малых астрономических спутников (Small Astronomical Satellites, SAS) НАСА, запущенный с итальянско-кенийской платформы Сан-Марко в Индийском океане 5 мая 1975 года. Спутник, сделанный в Университете им. Джонса Хопкинса (Johns Hopkins University) и Лаборатории прикладной физики (Applied Physics Laboratory), был предложен в Массачусетском технологическом институте; оттуда же велось его управление в течение всего периода работы. Обсерватория несла 4 инструмента для исследования неба в рентгеновском диапазоне. (ru) |
| rdfs:label | Small Astronomy Satellite 3 (ca) Small Astronomy Satellite 3 (de) Small Astronomy Satellite 3 (fr) Small Astronomy Satellite 3 (in) Small Astronomy Satellite 3 (it) Small Astronomy Satellite 3 (en) SAS-3 (ru) |
| owl:sameAs | freebase:Small Astronomy Satellite 3 yago-res:Small Astronomy Satellite 3 wikidata:Small Astronomy Satellite 3 dbpedia-ca:Small Astronomy Satellite 3 dbpedia-de:Small Astronomy Satellite 3 dbpedia-fa:Small Astronomy Satellite 3 dbpedia-fr:Small Astronomy Satellite 3 dbpedia-gl:Small Astronomy Satellite 3 dbpedia-id:Small Astronomy Satellite 3 dbpedia-it:Small Astronomy Satellite 3 dbpedia-ru:Small Astronomy Satellite 3 https://global.dbpedia.org/id/4YP1v |
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| foaf:name | Small Astronomy Satellite 3 (en) |
| is dbo:wikiPageDisambiguates of | dbr:SAS |
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| is dbp:spacecraft of | dbr:List_of_Scout_launches |
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