Megha-Tropiques气候观测卫星及其他（印度一箭四星），P ...

Megha-Tropiques:

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The french-indian Megha-Tropiques satellite is devoted to the atmospheric research. The data collected by the satellite will allow to improve our knowledge on the water cycle contribution to the climate dynamic in the tropical atmosphere and our understanding of the processes linked to the tropical convection.

The basic principles of the Megha-Tropiques mission are to:

    provide simultaneous measurements of several elements of the atmospheric water cycle : water vapour, clouds, condensed water in clouds, precipitation and evaporation,
    measure the corresponding radiative budget at the top of the atmosphere,
    ensure high temporal sampling in order to characterise the life cycle of the convective system and to obtain significant statistics.

Megha-Tropiques will be built on ISRO's IRS bus instead of the originally planned Proteus Bus to reduce the pressure on CNES budget. The payload is constituted of:

    MADRAS : a microwave imager aimed mainly at studying precipitation and clouds properties,
    SAPHIR : a 6 channels microwave radiometer for the retrieval of water vapour vertical profiles and horizontal distribution,
    SCARAB : a radiometer devoted to the measurement of outgoing radiative fluxes at the top of the atmosphere.

MADRAS is to be developed jointly by ISRO and CNES. SAPHIR and SCARAB are to be developed by CNES.

SRMSAT:

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SRMSAT is a microsat developed by the SRM University. Its purpose is to provide hands on experience to the students and the faculty of SRM University, to develop a 10 kg satellite, to monitor greenhouse gases and to develop a "Nano Satellite Bus" for future missions.

The scientific objective of SRMSAT is to monitor green house gases in Near Infrared region 900 nm - 1700 nm. A grating spectrometer is employed for the monitoring of Earth-based sources and sinks of anthropogenic and natural sources of greenhouse gases.

Jugnu:

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2011-10-8 14:19 上传

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Jugnu is a 3U-cubsat built by the Indian Institute of Technology Kanpur.

The 3 kg nanosatellite will be used to provide data for agriculture and disaster monitoring. Jugnu has a design life of one year.

Jugnu's carries the Micro Imaging System, a near infrared camera which will be used to observe vegetation. Also on board is a GPS receiver to aid tracking, and is intended to demonstrate a microelectromechanical inertial measurement unit.

Jugnu will be launched piggy back into low Earth by a PSLV rocket.

VesselSat:

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VesselSat is a constellation of three microsatellites to provide spacecraft-based Automatic Identification System (AIS) sensors in low-Earth orbit as a means of tracking maritime assets.

A delevopment version of the Luxspace AIS-receivers has been tested before on the Rubin-9.1 (AIS-Pathfinder 2) payload.

Two satellites will be leased to Orbcomm as a replacement for the lost capability of the malfunctioning Orbcomm Quick Launch satellites.