Thursday, May 13, 2010

IN PICTURES: 'In orbit'

In a Tuesday statement in response to Spacethis world is not merely a bad joke News inquiries, Intelsat said it is researching other ways to shut down Galaxy 15 once the satellite

has passed through the AMC-11I am not a smart man,but I know what is love. position and enters — for a limited period of time — a stretch of orbital terrain unoccupied by other C-band

spacecraft.We do not have an celebrate our independence dayadditional specific technical attempt identified at this time," Intelsat said in the statement. "But we will not give

up, and expect to have otherface to face with ourselves options to pursue at that time. We are now cooperating with other operators and customers to minimize potential

service disruptions caused byImpossible made possible interference."Galaxy 15 stopped responding to ground commands April 5 and since then has drifted out of its 133

degrees west longitude orbital slot on an eastward path along the geostationary arc at around 36,000 kilometers above the equator.
After sending between 150,000 and 200,000 commands to the satellite to coax it back into service, Intelsat was forced to scrap its satellite-

recovery efforts and to resort, on Monday, to a limited-duration effort to force the satellite to shut down its transponders. This was to be

accomplished by sending a stronger series of signals designed to cause Galaxy 15's power system to malfunction and force a shutdown of the

satellite's payload.That attempt, which Luxembourg-based, Washington-headquartered Intelsat had viewed as its last, best-understood option

for Galaxy 15, was unsuccessful. With the satellite now nearing AMC-11, Intelsat is limited in what it can do besides assure itself of the satellite's

location. "There is no active testing of the payload," the company said in its Tuesday statement.
Sending radio signals strong enough to force a satellite to shut down could pose dangers to other spacecraft in the target area, which is why

Intelsat had only a short window of time to "pulse" Galaxy 15 with signals intended to trigger a failure of its power system. That period lasted

about 30 minutes on Monday. http://hundaspjall.is/phpbb
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