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GFO, Geosat Follow-On was launched in February 1998. Its mission is to provide real-time ocean topography data to the US Navy. Scientific and commercial users have access to these data through Noaa. Its primary payload is a radar altimeter.

GFO follows the 17-day repetitive orbit of Geosat.

Further information on :

Satellite  GFO
Launch on  10/02/1998
End Date 
Altitude  800 km
Inclination  108°
Repetitivity  17 days
Agency  US Navy /Noaa
Goals  Measure ocean topography
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