FS Monge, A French rocket tracking ship pulled into port this morning.
The ship is named after the 18th century mathematician Gaspard Monge and serves a Missile Range Instrumentation Ship – She tracks and measures rocket trajectories. She was built for the trials of the Submarine-launched ballistic missiles of the Navy, and is also used to monitor the launch of Ariane rockets. Conceivably she can also track other countries missiles and rockets as well.

She was commissioned in 1992, and is 225m Long.