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NASA cancels space debris experiment
CAP CANAVERAL, Fla.. Dec 6: NASA cancelled a major experiment aboard space shuttle Discovery on Saturday — the release of six metal balls — because of a dead battery in the ejection system, reports AP.
"The best thing to do is to call it quits at this point with that experiment and go ahead and bring it home." said flight director Milt Heflin.
Space debris researchers wanted to track the orbiting balls with radar and telescopes to fine-tune their instruments and Imprpve their ability to track small objects.
Discovery's astronauts were about to eject the balls from a can in the shuttle cargo bay Friday when they received bad signals through the deploy-mechanism electronics.
Mission Control put off the
test and assembled a troubleshooting team in hopes of salvaging the half-million-dollar experiment. But flight directors gave up when the problem was traced to a dead battery.
The battery is located in the can in the open cargo bay and is inaccessible to the five astronauts. Flight directors decided it wasn't worth the risk to have the crew try sending commands to the equipment, Heflin said.
The astronauts also had to scrap more laser tests Saturday.
A New Mexico snowstorm and clouds over Alabama's Redstone Arsenal prevented the Defense Department from beaming up laser signals to Discovery. It was the third day in a row that the experiment was ruined by bad weather at
laser-sending stations.
The Army wants to see whether laser signals containing navigational data can be acquired in space. Such transmissions could be especially useful during wartime.
So far. the laser receiver mounted on one of Discovery's windows has gotten nothing more than a Uny burst of what may or may not have been data.
The five astronauts had better luck with the military camera experiment, although they were going through batteries faster than planned. Again and again, they had to forgo a planned target because of cloudy weather, but managed to snap pictures of clear nearby sites.
Among the few original tar gets with clear skies were the Somalian coast and Duluth
(Minn.) International Airport.
Military officials insisted the photographing of Somalia had nothing to do with the impending deployment of American troops to the East African nation.
The computerized camera system, called Hercules, provides the latitude and longitude of photographed sites. It was designed by scientists at the Naval Research Laboratory for military, environmental and meteorological use.
The main objective of Discovery's seven-day military mission was accomplished when the astronauts successfully deployed a secret spy satellite Wednesday. Just six hours after reaching orbit. Discovery is scheduled to land this Wednesday at Kennedy Space Center.