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SNAP-1 (2000)

First use of propulsion on a nanosatellite, SNAP-1 (2000)

SNAP-1’s propulsion system weighed less than 0.5kg. It was used to raise the orbit of the satellite by over 3km and propel it towards a rendezvous with another SSTL spacecraft. A total of 2m/s velocity change was achieved over 75 separate firings. One of the novel features was that the system did not contain a conventional propellant tank; instead, the propellant was stored in titanium tubing bent into a triangular shape.

SNAP-1 in build

SNAP-1 final assembly phase

Craig Underwood with SNAP-1