https://cdn.earthdata.nasa.gov/conduit/upload/5182/KeywordsCommunityGuide_Baseline_v1_SIGNED_FINAL.pdf 23.6 2026-03-19T10:41:57.720Z https://gcmd.earthdata.nasa.gov/KeywordViewer/scheme/platforms/9940dbad-1a9a-4858-a0e8-af35b21277e2 2015-09-23 Sentinel-1B Date=2018-06-12 User Id=mmorahan Entity=BroaderRelation Operation=DELETE User Note=Move Concepts System Note=delete broader relation Old Value=SENTINEL-1B [9940dbad-1a9a-4858-a0e8-af35b21277e2,345451] - Sentinel GMES [2c9f1fcc-d9c8-4c6d-b701-45c97cee511f,344719] Date=2019-02-22 User Id=mmorahan Entity=WeightedRelation Operation=INSERT System Note=insert WeightedRelation New Value=id: null related concept uuid: 1c53d85e-3792-4081-9748-192fd3140aa6 relationship type: null relationship value: null generated by: null Date=2025-02-06 User Id=tstevens Entity=Definition Operation=UPDATE Field=text System Note=update Definition Old Value=The SENTINEL-1 mission is the European Radar Observatory for the Copernicus joint initiative of the European Commission (EC) and the European Space Agency (ESA). Copernicus, previously known as GMES, is a European initiative for the implementation of information services dealing with environment and security. It is based on observation data received from Earth Observation satellites and ground-based information. The SENTINEL-1 mission includes C-band imaging operating in four exclusive imaging modes with different resolution (down to 5 m) and coverage (up to 400 km). It provides dual polarisation capability, very short revisit times and rapid product delivery. For each observation, precise measurements of spacecraft position and attitude are available. Synthetic Aperture Radar (SAR) has the advantage of operating at wavelengths not impeded by cloud cover or a lack of illumination and can acquire data over a site during day or night time under all weather conditions. SENTINEL-1, with its C-SAR instrument, can offer reliable, repeated wide area monitoring. The mission is composed of a constellation of two satellites, SENTINEL-1A and SENTINEL-1B, sharing the same orbital plane. SENTINEL-1 is designed to work in a pre-programmed, conflict-free operation mode, imaging all global landmasses, coastal zones and shipping routes at high resolution and covering the global ocean with vignettes. This ensures the reliability of service required by operational services and a consistent long term data archive built for applications based on long time series. Source: https://sentinel.esa.int/web/sentinel/missions/sentinel-1 Group: Platform_Details Entry_ID: SENTINEL-1 Group: Platform_Identification Platform_Category: Earth Observation Satellites Platform_Series_or_Entity: Sentinel GMES Short_Name: SENTINEL-1 End_Group Group: Platform_Associated_Instruments Short_Name: SENTINEL-1 C-SAR End_Group Group: Orbit Orbit_Altitude: 693 km Orbit_Type: LEO > LOW EARTH ORBIT > POLAR SUN-SYNCHRONOUS End_Group Creation_Date: 2009-12-18 Online_Resource: https://sentinel.esa.int/web/sentinel/missions/sentinel-1 Sample_Image: http://www.esa.int/images/sentinel2_alcatel_M.gif Group: Platform_Logistics Launch_Date: 2014-04-03 Launch_Site: KOUROU, FRENCH GUIANA Design_Life: 7 Years Primary_Sponsor: ESA/EU End_Group End_Group New Value=The SENTINEL-1 mission is the European Radar Observatory for the Copernicus joint initiative of the European Commission (EC) and the European Space Agency (ESA). Copernicus, previously known as GMES, is a European initiative for the implementation of information services dealing with environment and security. It is based on observation data received from Earth Observation satellites and ground-based information. The SENTINEL-1 mission includes C-band imaging operating in four exclusive imaging modes with different resolution (down to 5 m) and coverage (up to 400 km). It provides dual polarization capability, very short revisit times and rapid product delivery. For each observation, precise measurements of spacecraft position and attitude are available. Synthetic Aperture Radar (SAR) has the advantage of operating at wavelengths not impeded by cloud cover or a lack of illumination and can acquire data over a site during day or nighttime under all weather conditions. SENTINEL-1, with its C-SAR instrument, can offer reliable, repeated wide area monitoring. The mission is composed of a constellation of three satellites, SENTINEL-1A, SENTINEL-1B, and SENTINEL-1C, sharing the same orbital plane. SENTINEL-1 is designed to work in a pre-programmed, conflict-free operation mode, imaging all global landmasses, coastal zones and shipping routes at high resolution and covering the global ocean with vignettes. This ensures the reliability of service required by operational services and a consistent long term data archive built for applications based on long time series. Date=2018-11-05 User Id=tstevens Entity=AltLabel Operation=INSERT System Note=insert AltLabel New Value=id: null category: primary text: SENTINEL-1B language code: en Date=2018-11-02 User Id=mmorahan Entity=Definition Operation=INSERT System Note=insert Definition New Value=id: null text: The SENTINEL-1 mission is the European Radar Observatory for the Copernicus joint initiative of the European Commission (EC) and the European Space Agency (ESA). Copernicus, previously known as GMES, is a European initiative for the implementation of information services dealing with environment and security. It is based on observation data received from Earth Observation satellites and ground-based information. The SENTINEL-1 mission includes C-band imaging operating in four exclusive imaging modes with different resolution (down to 5 m) and coverage (up to 400 km). It provides dual polarisation capability, very short revisit times and rapid product delivery. For each observation, precise measurements of spacecraft position and attitude are available. Synthetic Aperture Radar (SAR) has the advantage of operating at wavelengths not impeded by cloud cover or a lack of illumination and can acquire data over a site during day or night time under all weather conditions. SENTINEL-1, with its C-SAR instrument, can offer reliable, repeated wide area monitoring. The mission is composed of a constellation of two satellites, SENTINEL-1A and SENTINEL-1B, sharing the same orbital plane. SENTINEL-1 is designed to work in a pre-programmed, conflict-free operation mode, imaging all global landmasses, coastal zones and shipping routes at high resolution and covering the global ocean with vignettes. This ensures the reliability of service required by operational services and a consistent long term data archive built for applications based on long time series. Source: https://sentinel.esa.int/web/sentinel/missions/sentinel-1 Group: Platform_Details Entry_ID: SENTINEL-1 Group: Platform_Identification Platform_Category: Earth Observation Satellites Platform_Series_or_Entity: Sentinel GMES Short_Name: SENTINEL-1 End_Group Group: Platform_Associated_Instruments Short_Name: SENTINEL-1 C-SAR End_Group Group: Orbit Orbit_Altitude: 693 km Orbit_Type: LEO > LOW EARTH ORBIT > POLAR SUN-SYNCHRONOUS End_Group Creation_Date: 2009-12-18 Online_Resource: https://sentinel.esa.int/web/sentinel/missions/sentinel-1 Sample_Image: http://www.esa.int/images/sentinel2_alcatel_M.gif Group: Platform_Logistics Launch_Date: 2014-04-03 Launch_Site: KOUROU, FRENCH GUIANA Design_Life: 7 Years Primary_Sponsor: ESA/EU End_Group End_Group language code: en Date=2018-06-12 User Id=mmorahan Entity=BroaderRelation Operation=INSERT User Note=Move Concepts System Note=add broader relation New Value=SENTINEL-1B [9940dbad-1a9a-4858-a0e8-af35b21277e2,345451] - Sentinel-1 [007c3084-89db-458e-8387-14e192b6cb8e,367691] Date=2019-03-28 User Id=mmorahan Entity=WeightedRelation Operation=DELETE System Note=delete WeightedRelation Old Value=id: null related concept uuid: 1c53d85e-3792-4081-9748-192fd3140aa6 relationship type: null relationship value: null generated by: null Date=2019-02-22 User Id=mmorahan Entity=WeightedRelation Operation=INSERT System Note=insert WeightedRelation New Value=id: null related concept uuid: ed400e7c-229e-48be-9a93-84f2fc864448 relationship type: null relationship value: null generated by: null Date=2025-02-06 User Id=tstevens Entity=Definition Operation=UPDATE Field=reference System Note=update Definition New Value=https://sentiwiki.copernicus.eu/web/s1-mission Date=2021-01-13 User Id=sritz Entity=PrefLabel Operation=UPDATE Field=text System Note=update PrefLabel Old Value=SENTINEL-1B New Value=Sentinel-1B Date=2021-01-13 User Id=sritz Entity=AltLabel Operation=UPDATE Field=text System Note=update AltLabel Old Value=SENTINEL-1B New Value=Sentinel-1B Date=2015-09-23 User Id=saritz Entity=BroaderRelation Operation=INSERT User Note=Insert Concept System Note=add broader relation New Value=SENTINEL-1B [9940dbad-1a9a-4858-a0e8-af35b21277e2,158413] - Sentinel GMES [2c9f1fcc-d9c8-4c6d-b701-45c97cee511f,143381] The SENTINEL-1 mission is the European Radar Observatory for the Copernicus joint initiative of the European Commission (EC) and the European Space Agency (ESA). Copernicus, previously known as GMES, is a European initiative for the implementation of information services dealing with environment and security. It is based on observation data received from Earth Observation satellites and ground-based information. The SENTINEL-1 mission includes C-band imaging operating in four exclusive imaging modes with different resolution (down to 5 m) and coverage (up to 400 km). It provides dual polarization capability, very short revisit times and rapid product delivery. For each observation, precise measurements of spacecraft position and attitude are available. Synthetic Aperture Radar (SAR) has the advantage of operating at wavelengths not impeded by cloud cover or a lack of illumination and can acquire data over a site during day or nighttime under all weather conditions. SENTINEL-1, with its C-SAR instrument, can offer reliable, repeated wide area monitoring. The mission is composed of a constellation of three satellites, SENTINEL-1A, SENTINEL-1B, and SENTINEL-1C, sharing the same orbital plane. SENTINEL-1 is designed to work in a pre-programmed, conflict-free operation mode, imaging all global landmasses, coastal zones and shipping routes at high resolution and covering the global ocean with vignettes. This ensures the reliability of service required by operational services and a consistent long term data archive built for applications based on long time series. 2025-02-06 07:50:26.0