NASA spacecraft detects missing since 2009 with interplanetary radar




NASA is using interplanetary radar technology an Indian spacecraft has been missing since 2009, detected. It is the biggest test of the technology been so far and the demonstrated potential to be useful in future lunar missions.

The spacecraft, the Chandrayaan-1, an unmanned cube of about 1.5 cubic meters, somewhere had to float in orbit the moon. Vehicle Tracking telescopes was not possible because the reflective light of the moon was too bright to see such a small object.

Interplanetary radar is claimed has long used NASA, for example asteroids observe are millions of kilometers away from the earth. Chandrayaan-1, although floating through space at a distance of “only” about 384,400 kilometers, but this object by detecting small size was still challenging than the usual asteroids. NASA has the technology also tracked down his Lunar Reconnaissance Orbiter, but that was not lost, and the agency therefore had a very good idea of where to look.

NASA radar installation consists of two major parts. The microwaves are emitted from an antenna with a diameter of 70 meters at the Goldstone Deep Space Communications Complex at Fort Irwin, California. The rebounding waves are almost completely absorbed at the other end of the country, by the 100-meter-wide Green Bank Telescope in West Virginia.

The search was complicated by the fact that the attraction of the moon is uneven, making it difficult to make estimates of what the Indian spacecraft was supposed to be about. It was even possible that Chandrayaan-1 now had crashed on the moon. However, NASA knew that the spacecraft drifted across the poles of the moon and that’s been the benchmark that led to the rediscovery.

This new application for interplanetary radar may be useful to estimate risk of collision both as to support space vehicles with communication and navigation problems.


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