Chennai, Sep 24 - The American space agency NASA is expected to announce Thursday major findings of its moon mineralogy matter that went on board India's Chandrayaan-1.

The announcement has been kept under wraps, but it is speculated it will be about the presence of water or ice on the moon.

Worried about the reports, Indian Space Research Organisation (ISRO) Chairman G. Madhavan Nair Wednesday told reporters in Sriharikota: 'Mineralogy matter has given 97 percent of the moon surface coverage. I can't confirm the presence of water now. Before the end of this week, we will let you know'.

He also said, 'Chandrayaan is a 100 percent success as far as ISRO is concerned. ISRO is studying the data sent by the satellite and is now focusing on Chandrayaan-2 which will be launched sometime in 2012 or 2013'.

India launched Oceansat-2 and six European satellites Wednesday.