GOES-10 > Geostationary Operational Environmental Satellite 10GOES-10 - Spacecraft Letter: K. Launched: April 25, 1997. Spacecraft Location: 135 West (previous location) Instruments: Imager, Sounder and SEM. AOCS mode: V - yaw flip. Operational status: At 60 W longitude beginning 12/04/06 to support South America mission.