An unmanned Russian cargo spacecraft launched toward the International Space Station this morning, but once in orbit, the capsule encountered a problem, officials said.
The Progress 51 supply spacecraft failed to deploy an antenna used for navigation after lifting off from the Baikonur Cosmodrome in Kazakhstan at 6:12 a.m. EDT (1012 GMT). Specifically, the antenna is used to "measure the orientation" of the ship, NASA officials said.
Ground controllers are now working to assess and fix the problem.
"Update: Once in orbit, an antenna used as a navigational aid on the Progress did not deploy," officials from NASA wrote on Twitter after the glitch was discovered. "Russian ground controllers are assessing a fix."
Progress is scheduled to dock with the International Space Station on Friday (April 26) at 8:26 a.m. EDT (1226 GMT). While some Progress spacecraft can launch and dock on the same day, that wasn't possible with this particular launch due to orbital dynamics, so the vehicle will take two days to catch up to the International Space Station in orbit.
It is unclear whether the scheduled docking time will be affected by the glitch.
Progress is slated to deliver 1,764 pounds (800 kilograms) of propellant, 57 pounds (26 kg) of air, 48 pounds (21 kg) of oxygen, 926 pounds (420 kg) of water and 3,348 pounds (1519 kg) of experiment hardware, spare parts and other supplies to the residents of the space station, NASA officials said.
Canadian Space Agency astronaut Chris Hadfield currently commands the six-person crew that staffs the $100 billion orbiting laboratory. NASA astronauts Chris Cassidy and Tom Marshburn as well as Russian cosmonauts Roman Romanenko, Pavel Vinogradov and Alexander Misurkin round out the Expedition 35 crew.
Hadfield, Romanenko and Marshburn are expected to return to Earth in May after six months onboard the station, at which point Vinogradov will take over as the commander of the Expedition 36 mission.
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