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Chandrayaan 1 is an Indian Space Research Organization (ISRO) mission to orbit the moon for two years, gathering scientific information and testing India's space capabilities. Based upon the Kalpansat weather satellite, it is a 1.5 meter bus weighing approx. 523 kg. Chandrayaan carries a 29kg Moon Impact Probe (MIP) and a 55kg scientific payload.


The scientific payload consists of the following:


  • Terrain Mapping Camera (TMC) with a 5 meter resolution.
  • Hyper Spectral Imager (HySi) for mineralogical mapping in the 400-900 nanometer band. Spectral resolution of 15 nanometers. Spacial resolution of 80 meters.
  • Lunar Laser Ranging Instrument (LLRI) for mapping lunar topography.
  • High Energy X-ray/gamma ray spectromenter (HEX). 30 - 250 keV range. Designed to detect the decay products of Uranium and Thorium.
  • Moon Impact Probe (MIP). 29 kg released from a 100km orbit.


  • Imaging X-Ray Spectrometer (C1XS). 1-10 keV range fluorescence. Ground resolution of 10km. Measures abundance of elemental Mg, Al, Si, Ca, Fe, and Ti on the lunar surface. Through ESA.
  • Near Infra Red spectrometer (SIR-2). 0.93-2.4 μm range. 6nm spectral resolution. Through ESA.
  • Sub KeV Atom Reflecting Analyser (SARA). Through ESA.
  • Radiation Dose Monitor Experiment (RADOM). From Bulgarian Academy of Sciences.
  • Miniature Synthetic Aperture Radar (MiniSAR). Through NASA.
  • Moon Mineralogy Mapper (M3). Through NASA.

Lunar orbiting spacecraft.

Reference: scheduled for launch March 2008

Sponsor: Indian Space Research Organization

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