A voyage to moon. Chandrayaan-I.

Chandrayaan I (Sanskrit: चंद्रयान-1, lit: Lunar Craft), is an unmanned lunar exploration mission by the Indian Space Research Organization (ISRO). The mission includes a lunar orbiter as well as an impactor. The spacecraft will be launched by a modified version of the Polar Satellite Launch Vehicle.

The remote sensing satellite will weigh 1304 kg (590 kg initial orbit mass and 504 kg dry mass) and carry high resolution remote sensing equipment for visible, near infrared, soft and hard X-ray frequencies. Over a two-year period, it is intended to survey the lunar surface to produce a complete map of its chemical characteristics and 3-dimensional topography. The polar regions are of special interest, as they might contain water ice.

The mission includes five ISRO payloads. Six other payloads from NASA, ESA, and the Bulgarian Aerospace Agency are getting free ride thanks to the Indian generosity.

Mission Objectives:

1) To launch and orbit a spacecraft in lunar polar orbit and conduct scientific studies.
2) To carry out high resolution mapping of topographic features in 3D, distribution of various minerals and elemental chemical species including radioactive nuclides covering the entire lunar surface using a set of remote sensing payloads. The new set of data would help in unraveling mysteries about the origin and evolution of solar system in general and that of the moon in particular or on its composition and mineralogy.
3) Realize the mission goal of harnessing the science payloads, lunar craft and the launch vehicle with suitable ground support system including DSN station, integration and testing, launching and achieving lunar orbit of ~100 km, in-orbit operation of experiments, communication/telecommand, telemetry data reception, quick look data and archival for scientific utilization by identified group of scientists.

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