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Private US Cygnus spacecraft delayed rendezvous with ISS.
On September 22, 2013 the US "Cygnus” unmanned supply spacecraft was to be docked with the International Space Station. But the rendezvous of the Cygnus cargo ship with the International Space Station (ISS) was delayed due to a computer data link glitch between them. The spacecraft was originally expected to be captured by a robotic arm operated by astronauts inside the space station. At around 05:30 UTC, the Cygnus established direct data contact with the ISS and found that some of the data received had values that it did not expect, causing Cygnus to reject the data. This mandated an interruption of the approach sequence.