A deliverable of the Sentinels Rolling Archive, Operations Maintenance and Evolution contract, this document provides an annual look at the Sentinel Data Access Service operated by the Serco Gael consortium for ESA as part of the Copernicus programme.

This Annual Report presents the performance of the Copernicus Data Access System operated by ESA during the year 1 December 2017 to 30 November 2018 (Y2018), and analyses the trends visible in the public uptake of Copernicus Sentinel data.

This is the fourth such report released by the data access service provider, Serco SpA, and covers a year in which a significant milestone was reached: following the successful launches of Sentinel-5P on 13 October 2017 and Sentinel-3B on 25 April 2018, the full set of seven Copernicus Sentinel satellites
(Sentinels-1, -2, -3 A&B and -5P) which the Data Access System was designed to serve were in orbit and their data was being made available to the public on a systematic basis.