PoSAT-1, the first Portuguese satellite, was launched into orbit on September 26, 1993, from the Kourou Space Centre, French Guiana.

The PoSAT project was developed by a consortium of universities and companies in Portugal and a team of seven Portuguese engineers worked alongside SSTL employees on the build of the microsatellite.
PoSAT-1 was an earth observation and technology demonstration mission.  It carried two imagers, one with a wide field of view with 2 km ground resolution, the second narrow field imager provided 200m ground resolution.  It also carried a Cosmic Ray Experiment and a Digital Signal Processing Experiment. PoSAT-1 stopped transmitting in 2006.

The POSat team
The POSat team

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