|Mission type||Amateur radio satellite|
|Launch mass||11.8 kg (26 lb)|
|Dimensions||15 cm × 15 cm × 15 cm (5.9 in × 5.9 in × 5.9 in)|
|Start of mission|
|Launch date||26 September 1993, 01:45 UTC|
|Launch site||Kourou ELA-2|
|End of mission|
|Last contact||5 December 2012|
|Perigee altitude||794 km (493 mi)|
|Apogee altitude||823 km (511 mi)|
|Epoch||26 September 1993|
Eyesat-1 is an American experimental communications microsatellite with an store-dump payload. The mission of Eyesat-1 was experimental monitoring of mobile industrial equipment. Eyesat-1 has provided the National Oceanic and Atmospheric Administration in Silver Spring, Maryland, with communication services to the South Pole. Eyesat-1 carries an FM repeater for Amateur Radio Research and Development Corporation (AMRAD) called AMRAD OSCAR 27 or OSCAR 27.
After 19 years of operation, the satellite failed on December 5, 2012.
In 2020, the satellite was recovered, and its FM repeater became intermittently operational.