OPS-SAT was a CubeSat by the European Space Agency (ESA), intended to demonstrate the improvements in mission control capabilities that will arise when satellites can fly more powerful on-board computers.

This concept was enabled by the NanoSat MO Framework (NMF) and allowed Apps to be uploaded to the spacecraft and then started on board.

[7] During its descent, ESA collaborated with amateur radio enthusiasts to collect as much data as possible, observing the effects on the satellite as it passed through the Earth's lower atmosphere.

The satellite was designed to be robust and no single point of failure should exist, so that it was always possible to recover the spacecraft if something went wrong with one of the software experiments.

The European Space Agency in collaboration with Graz University of Technology investigated and developed the NanoSat MO Framework – Open source software.

The simulator allows developers to make their NMF Apps without the need to access an advanced satellite testbed hardware platform.