Chandrayaan-1: Indian Mission to Moon
Chandrayaan-1: Indian Mission to Moon
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Chandrayaan-1:印度登月任务
DOI:
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发表时间:
2006
期刊:
影响因子:
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通讯作者:
M. Annadurai
中科院分区:
文献类型:
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作者:
J. Goswami;K. Thyagarajan;M. Annadurai
The Indian Space Research Organisation (ISRO) has started a new initiative to launch dedicated scientific satellites earmarked for planetary exploration, astronomical observation and space and atmospheric sciences. The Chandrayaan-1 mission to Moon is the first planetary exploration mission of this new initiative. The primary scientific objective of the Chandrayaan-1 mission, scheduled for launch in late 2007, is to further our understanding of the origin and evolution of the Moon based on high resolution se-lenological and chemical mapping of the Moon. A suite of baseline payloads, identified to meet this scientific objective, include a Terrain Mapping Camera (TMC), a Hyper-Spectral Imager (HySI), a Low Energy X-ray Spectrometer (LEX), a High Energy X-γ ray Spectrometer (HEX) and a Lunar Laser Ranging Instrument (LLRI). These payloads will provide simultaneous mineralogical, chemical and photo-geological mapping of the lunar surface at resolutions better than previous and currently planned lunar missions. They will allow (i) direct estimation of lunar surface concentration of the elements Mg, Al, Si, Ca, Ti and Fe with high spatial resolution (≤20 km), (ii) High resolution (~100m) UV-VIS-NIR mapping of the lunar surface to identify abundances of various lunar minerals, (iii) High resolution 3D mapping of the lunar surface, and (iv) nature of volatile transport on moon, particularly to colder lunar polar regions. ISRO also offered opportunity to the international scientific community to participate in Chandrayaan-1 mission and several payloads that complement the basic objectives of the Chandrayaan-1 mission have been selected for inclusion in this mission. These are: a miniature imaging radar instrument (Mini-SAR) to explore the polar regions of the moon to look for possible presence of water ice, two infrared spectrometers (SIR-2 and Moon Mineral Mapper: MMM) for extending the range beyond that of the hyper spectral imager, a low-energy X-ray Spectrometer (CIXS) for high resolution chemical mapping, a sub-keV atom reflecting analyzer (SARA) for detection of solar wind sputtered low energy neutral atoms as well as studies of lunar surface magnetic anomalies and a radiation dose monitor (RADOM) for monitoring energetic particle flux in the lunar environment. Three of the payloads, There will be significant technical participation of ISRO in realizing two of the payloads, CIXS and SARA. There will be active scientific collaboration between ISRO scientists and investigators associated with each of the AO payloads. The basic characteristics of the baseline payloads are described here; description of the AO payloads may be found in companion abstracts (see …