Progress-M (modified)

ISS Logistics, ISS Orbit Raising Progress is derived from the manned Soyuz spacecraft and is launched on the same vehicle, a Soyuz rocket. The purpose of Progress is to deliver supplies needed to sustain human presence in orbit. Currently it is used as a re-supply spacecraft for the ISS. The modified Progress-M is a uncrewed cargo spacecraft based on the Progress-M. In the new version, the Argon-16 computer is replaced by the new TsVM-101 computer. The latter is a much more capable computer, is almost 10 times lighter and much smaller. The analogue telemetry system is also replaced by a smaller digital telemetry system called MBITS.