Inspector was a spacecraft intended to serve as a remote inspection device for the Mir space station. Built by Daimler-Benz Aerospace, it was delivered to Mir by a Progress-M supply vessel and deployed on 17 December 1997. However, Inspector failed, possibly due to a faulty gyro, and was abandoned by the cosmonauts. Mir was boosted out of the way, and the inspection craft became an unintended microsatellite before its orbit decayed on 2 November 1998.