Indias Chandrayaan successfully settles into lunar trajectory

November 6th, 2008 - 1:05 pm ICT by ANI  

ISRO

Paris, Nov 6 (ANI): Following a fifth orbit-raising maneuver, Indias Chandrayaan-1 spacecraft has successfully settled into a trajectory that will take it to the Moon.

Chandrayaan-1 is Indias first mission to venture beyond Earths orbit.

After launch on 22 October, the spacecraft was first injected into an elliptical 7-hr orbit around Earth, between 255 km and 22 860 km above our planet.

After five engine firings, Chandrayaan-1 spiralled outwards in increasingly elongated ellipses around Earth, until it reached its lunar transfer orbit on November 4.

In the fifth and last orbit-raising maneuver, the spacecrafts 440 Newton liquid-fuel propelled engine was fired for about two and a half minutes.

The lunar transfer orbits farthest point from Earth is about 380,000 km.

The spacecraft, which is being monitored from the Spacecraft Control Centre at the Indian Space Research Organisations (ISRO) Telemetry, Tracking and Command Network (ISTRAC) in Bangalore, is working very well.

Chandrayaan-1s Terrain Mapping camera (TMC) was successfully tested on October 29 and provided its first images, depicting Earth.

Chandrayaan-1 will approach the Moon on November 8, 2008, when the spacecrafts liquid-fuel propelled engine will be fired again.

This maneuver, called lunar orbit insertion, will decelerate the spacecraft to allow the Moons gravity to capture it into an elliptical lunar orbit.

A series of further maneuvers will then progressively lower the altitude of Chandrayaan-1 around the Moon until it reaches its final 100 km circular orbit. (ANI)

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