|Mission type||Weather satellite|
|Operator||NOAA / NASA|
|Mission duration||Failed to orbit|
7 years (planned)
|Launch mass||660 kilograms (1,460 lb)|
|Start of mission|
|Launch date||3 May 1986, 22:18UTC|
|Rocket||Delta 3914 D178|
|Launch site||Cape Canaveral LC-17A|
GOES-G was a weather satellite to be operated by the National Oceanic and Atmospheric Administration. The satellite was designed to sense and monitor meteorological conditions from a geostationary orbit, intended to replace GOES-5 and provide continuous vertical profiles of atmospheric temperature and moisture. It was lost due to the launch failure of a Delta 3914 rocket on 3 May 1986.
Launch occurred on May 3, 1986 at 22:18 GMT, aboard Delta 178, the first NASA launch following the Challenger disaster. Seventy-one seconds into the flight, the first stage RS-27 engine shut down prematurely due to an electrical fault, and the rocket was destroyed by range safety.