What is ERS?
ESA's two European Remote Sensing (ERS) satellites, ERS-1 and –2, were launched into the same orbit in 1991 and 1995 respectively. Their payloads included a synthetic aperture imaging radar, radar altimeter and instruments to measure ocean surface temperature and wind fields.
ERS-2 added an additional sensor for atmospheric ozone monitoring. The two satellites acquired a combined data set extending over two decades.
Latest Mission Operations News
12 July 2017
Due to an urgent maintenance activity, the EOLI-SA On-The-Fly (OTF) ERS-1/2 SAR_IMS collection will be unavailable from Thursday 13 July 2017 at 16:00 CEST until 09:00 CEST on Friday morning, 14 July.
Users are informed that a new release of the MERCI Catalogue and Inventory (v2.4.1) with integration into the ESA EO Single Sign-On (EO-SSO) architecture is now available for access to the Envisat MERIS Full Resolution (FRS) as well as the Envisat and ERS (A)ATSR datasets.
06 June 2017
Due to a scheduled maintenance activity, all of the EOLI-SA collections will be unavailable (both data search and download) on Wednesday 07 June 2017 from 9:30 to 10:30 CEST.
03 December 2014
Lovers of architecture and history can rest easy: the stability of historical buildings can now be monitored in real time by a new technique with its roots in space.
27 March 2014
Twenty years of radar coverage from ESA satellites have been used to measure the rapid thinning of Antarctica's Pine Island Glacier - and it's losing more ice than previously thought.
14 March 2012
An ESA-funded project to model sea ice dynamics using archived radar data from the Envisat and ERS missions has released its first validated datasets for the Arctic winters of 2004-11. Mapping sea ice displacement is key for climate research.
28 September 2011
Watch the celebration and scientific workshop on the legacy of the two ERS satellite missions. The events were held on 27 September at ESRIN, ESA's centre for Earth observation, in Frascati, Italy.
13 July 2011
These images of Rome and its surroundings were acquired by ERS-1 and ERS-2 during their long service around the globe, providing valuable information to the scientific community for 20 years.
29 April 2009
Envisat and ERS-2, ESA's two veteran Earth missions, have completed a second tandem observation campaign. The technique involved flying the two satellites in precisely coordinated orbits, generating valuable new radar data for modelling Arctic terrain.
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