WASHINGTON, April 15 (Xinhuanet) -- NASA on Friday launched a robotic
spacecraft to test technology that will pave the way for automated rendezvous
and docking systems of spaceships in orbit.
The 363-kg DART (Demonstration of Autonomous Rendezvous Technology) craft
and its booster rocket Pegasus were carried by aStargazer L-1011 aircraft over
the Pacific Ocean to an altitude ofabout 9,100 meters before being released at
1:26 p.m. EDT (1726 GMT). The aircraft took off from Vandenberg Air Force Base
NASA plans to learn from the program and prepare technology forfuture space
missions involving automated spacecraft docking, robotic repair or unmanned
Russia has used automated docking technology for years.
DART, which is equipped with navigational computers and sensors,is expected
to catch up with a retired experimental communicationssatellite owned by the US
military. The mission costs about 110 million US dollars.
The military satellite, called MUBLCOM, is flying 760 km above the earth.
It was launched in 1999 and carries special reflectors for use in guidance
systems similar to the one aboard DART.
DART is expected to close in on the target satellite and move away. It will
attempt rendezvous maneuvers, including moving around the satellite and
descending from above.
DART is managed by NASA's Marshall Space Flight Center in Huntsvill,
The robotic test craft will burn itself away during re-entry after
completing its 24-hour mission. Enditem