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.

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.

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