Launched : 10 February 1998 Data available : 7 January 2000 -> Sept 2008 Altitude: 880 km Repeat Time : 17 days  Distance between groundtracks: 160 km at the equator Alongtrack Resolution: 7 km for ocean studies.

A more detailed description of the GFO mission is found on the NOAA site.

The satellite GFO (Geosat Follow On), successor of Geosat was launched on February 10th, 1998, by the American navy (GFO data is distributed to the scientific community via the NOAA (National Oceanic and Atmospheric Administration). Its mission is to supply real-time data of the topography of the oceans. Its main instrument is a radar altimeter. The mission GFO follows exactly the repetitive orbit of Geosat.The GEOSAT Follow-On program is the Navy's initiative to develop an operational series of radar altimeter satellites to maintain continuous ocean observation from the GEOSAT Exact Repeat Orbit.

 A more detailed description of the GFO mission is found on theNOAA site.

Available products are provided for these dates:

The nominal path is described in GFO nominal path