On June 7, 2007 Russia successfully launched Soyuz-U rocket from the Plesetsk launch site. The Cosmos-2427 satellite delivered into orbit is an optical reconnaissance satellite of the Kobalt-M type.

The launch was performed from the Plesetsk launch site by the Space Forces crews at 22:00 MSK (18:00 UTC). Cosmos-2427 received international designation 2007-022A and NORAD catalog number 31595. According to NORAD data, Cosmos-2420 was deployed in an orbit with inclination of 67.15 degrees, orbital period of about 89.6 minutes, apogee of 360 km, and perigee of 180 km.

This is the third Kobalt-M launch – previous ones took place in September 2004 (Cosmos-2410) and May 3 2006 (Cosmos-2420). Kobalt-M satellites, like their Yantar-4S2/Kobalt predecessors, use returnable film capsules to deliver information to the Earth. Nominal lifetime of these satellites is about 60 days.