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Nair says that Chandrayaan-1 is more unique in terms of coverage.

The US and the then USSR had moon missions in the past, but the coverage area was less when compared to Chandrayaan-1. ISRO's mission is aiming at total mapping of the moon and this would help in providing more data.

Nair said that through this mission they would look for the presence of water, exotic minerals and Helium-3 in the lunar surface.

Nair said that on November 8, the spacecraft would reach the lunar trajectory.

"There are many unknowns which have to be discovered and in the next two years, we will have a total map of the moon. We have many unknowns before us and many hidden troubles. We are working to ensure that everything goes off smoothly and the ultimate result achieved," Nair said

Nair also said that they had to stretch their imagination during the preparation for this mission.

When asked if China and Japan [Images] had shared information regarding the problems they faced during their moon mission, he answered in the negative. Nair however added that they have not left anything to chance.

Apart from this, Chandrayaan carries 11 complex scientific equipments on board which will help give better information regarding the moon and its composition.

The ISRO chief said that they underwent some anxious moments before the launch. "It was raining in Shriharikota and we lost nearly 10 hours during countdown. However our scientists did a commendable job and worked overtime to ensure that everything went as per plan and the most difficult part of the journey was completed  on Wednesday," Nair said.  

                                                 Greet the ISRO team

Nair was asked whether he had visited a temple last night to pray for the success of the mission. Nair said, " It is nothing special. I pray everyday."

He said that immediately after the launch he called the prime minister and conveyed the message to him. Dr Singh who sounded elated said that India today is a proud nation.

On the health of the satellite, Nair said that the condition is stable. The star tracker has been commissioned and the fly wheels are in good condition.

The distance measurements are being tracked and we have started receiving signals. By 1230 hrs we should have a cleaer picture, he added.