2/20/2013
U.S. astronauts restored full communications and command capability aboard the International Space Station Tuesday after a computer software upload triggered a three-hour loss of contact with Mission Control in Houston. The trouble arose when Mission Control was switching to a back-up U.S. computer so that new software could be loaded into the prime U.S. computer. NASA officials said a ground system was not configured properly for the switch. Consequently, the station’s S-band communications antenna could not be pointed properly at a NASA tracking and data relay satellite that enables crews to stay in contact with Mission Control. The glitch occurred at about 9:45 a.m. EST and communications and command control capability were restored at 12:34 p.m. EST.  (Image Credit: NASA)
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