Monday, September 14, 2009

ISRO, NASA experiment to look for ice on moon ended in failure: NASA

Monday, September 14, 2009
"A NASA scientist has said that his joint experiment with ISRO to look for ice in a permanently shadowed crater near the moon's North
Pole using Chandrayaan-I had failed.

Known as bi-static experiment, it involved coordinated use of Chandrayaan-I and US space agency National Aeronautics and Space Administration's Lunar Reconnaissance Orbiter (LRO) spacecraft

Ahead of the experiment, LRO executed a minor manoeuvre to adjust its orbit to Chandrayaan-I and both spacecraft made observations of the Erlanger Crater from different angles at the same time.

However, when NASA scientists analysed the data, they found that Chandrayaan-I was not pointed to the moon when the observations were being made.

"Everything worked out as best as could be hoped, except for one thing. It turned out Chandrayaan-I was not pointed at the moon when we were taking the data, but we didn't know that at the time," said Paul Spudis, principal investigator for Chandrayaan-I radar instrument.

The experiment was conducted on August 20 and scientists were planning to make another set of observations around last month end but Chandrayaan-I lost radio contact with the ground station on August 29 forcing ISRO to bring the mission to an abrupt end. "


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