European Remote-Sensing Satellite

This article is about the European satellite program. For the 1960s United States Air Force satellite program also abbreviated ERS, see Environmental Research Satellite § TRS_Mk._1.

A full-size model of ERS-2.

European Remote Sensing satellite (ERS) was the European Space Agency's first Earth-observing satellite programme using a polar orbit. It consisted of two satellites, ERS-1 and ERS-2, with ERS-1 being launched in 1991.