Sentinel-1 Mission Status

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Presentation transcript:

Sentinel-1 Mission Status Pierre Potin, Sentinel-1 Mission Manager CEOS LSI-VC-4 / SDCG-12 / GEOGLAM Trial Joint Meetings 5th – 8th September 2017 ESA/ESRIN, Frascati, Italy

Sentinel-1: Copernicus radar imaging mission for ocean, land, emergency Part of the Copernicus Programme led by the European Union Mission based on 2 identical satellites (S1A & S1B) and a highly performing ground segment Main satellites characteristics: C-band Radar instrument Instrument duty cycle of 25 min/orbit in HBR modes and 75 min/orbit in LBR (Wave) Sun-synchronous orbit at 693 km altitude Inclination: 98.18˚ 7 years lifetime, consumables for 12 years Mean LST: 18:00h at ascending node 12-day repeat cycle at Equator (6 days with 2 satellites) Instrument operations based on a predefined observation scenario Systematic data processing with open & free data access Gradual increase of the mission operational capacity from the S1A launch up to the mission constellation routine operations

Sentinel-1 Mission Phases S1 Mission Routine Operations S1 Mission Operations Qualification S1A Routine Operations S1A Operational qualification S1B Space Segment Commissioning S1A Space Segment Commissioning 1st S1A ROR 9 June 2015 S1A-Launch 3 April 2014 S1A IOCR Sep 2014 S1B Launch 25 April 2016 6 Sep 2017 S1B IOCR Sep 2016

Sentinel-1: mission status Sentinel-1 nominal routine operations continue Sentinel-1A and -1B data routinely provided to Copernicus Services and users worldwide On-going support to various activations from the Copernicus Emergency Management Service and International Charter Space and Major Disasters Use of EDRS service has been progressively increased as part of routine operations, for both Sentinel-1A and Sentinel-1B Sentinel-1 constellation generates now 11 TB of products daily (against a formal specification of 3 TB) Upcoming activities Start of gradual increase of Quasi Real Time observations in response to Copernicus and Member States needs Identify and implement mission evolution to support new user needs, increased system capacity enabling further mission exploitation, etc. Md 4.0 Earthquake in Ischia, Italy, 21/08/2017. Ground deformation measured by Sentinel-1 © Contains Copernicus Sentinel Data (2017) / CNR-IREA Upd –status and picture (Pierre)

EDRS-Sentinels geometrical visibility map Operational use of European Data Relay System (EDRS) The European Data Relay System service provides complementary acquisition of Sentinel-1 mission data addressing in particular: increased coverage enhanced timeliness, including quasi-real time (QRT) observation capabilities, in particular outside Europe The main functions provided by the service are: Sentinels mission data transmission via Optical (Laser) link to the GEO satellites Mission data relay between the GEO satellites and the Ka-band ground receiving terminals Mission data reception, decommutation and provision to the service interface point (Copernicus WAN circulation network) EDRS-Sentinels geometrical visibility map EUTELSAT 9B hosting EDRS-A

Sentinel-1 Constellation operations Operational services status summary

Sentinel-1 observation scenario Main thematic domains & components Land cover: agriculture, forestry, hydrology, etc. Maritime surveillance European coverage Calibration/validation Sea-ice, icebergs, lake-ice Emergency Global land mapping Ground deformation: Tectonic, volcanoes, landslides, subsidence… (InSAR applications) Security PR actions (infrequent) Ice sheets, glaciers, permafrost, snow, etc Sea state

Sentinel-1 observation scenario SAR Operational Modes GRD Level 1 product resolution Swath Width Polarisation 50m (3 ENL) > 400 km HH+HV or VV+VH 20m (5 ENL) > 250 km 9m (4 ENL) > 80 km 50m (140 ENL) 20 x 20 km² at 100 km spacing HH or VV EW IW SM WV IW: main mode over land and coastal areas

Image Acquisition in Interferometric Wide Swath mode (IW) Terrain Observation by Progressive Scans (TOPS)

Image Acquisition in Wave Mode (VW) (used over open oceans)

Sentinel-1 observation scenario KML files providing detailed information on the planned acquisitions, regularly published on Sentinel Online https://sentinels.copernicus.eu/web/sentinel/missions/sentinel-1/observation-scenario/acquisition-segments

Sentinel-1 systematic production scenario All Sentinels acquired data are systematically downlinked and processed to generate the core products within 24 hours from sensing: L0 products L1 GRD L1 SLC (initially over selected regional areas, since July 2015 over all land masses)

Sentinel Open Hub: Free and Open Access to Sentinel data (previously called “Scientific” Hub) https://scihub.copernicus.eu/ Access through self-registration Automated download scripting capability and dedicated API-Hub Restriction on concurrent downloads More than 95,000 users registered 1.7 Million Sentinel-1 products are available on-line for download, representing about 2.6 PB of data. More than 12 PB of data downloaded by users.

Sentinel Online web portal http://sentinels.copernicus.eu Sentinel-1 related documentation and technical notes available on this portal, as well as news and regular web stories

Sentinel-1 applications  ever increasing Sea ice and iceberg monitoring Maritime surveillance: oil spill monitoring, ship detection, illegal fisheries, etc. Sea state: wind, wave Ice sheets, glaciers, climate change Ground deformation: subsidence, landslides, earthquakes, volcanoes, infrastructure monitoring Land use, agriculture, forestry, logging, land classification, urban planning Emergency management Overview on the main Sentinel-2 applications, examples from each domain are following Soil moisture, wetland Snow, permafrost, avalanches,…

Concluding remarks Sentinel-1 mission routine operations on-going, overall mission in a very good shape High quality data routinely provided to Copernicus Services, Member States, International partners and to a wide spectrum of user communities worldwide for various thematic applications The mission provides: global and routine coverage, with a systematic production scenario, open and free data access, the long-term perspective,  to further bring SAR applications into the operational domain, at local, national, regional, continental and global scale

CSC Missions Management On-Line Thank you ! Copernicus Programme: copernicus.eu Sentinel Online: sentinels.copernicus.eu CSC Data Access: spacedata.copernicus.eu ESA Sentinel app: available for iOS and Android