Sentinel-1 Extended Time Annotation Products (ETAD) 2026-04
type: Dataset
first: https://fedeo.ceos.org/series/eo:organisationName/EC/sentinel-1-etad/2026/04
keyword: Sentinel
keyword: Copernicus
keyword: ESA
keyword: ETAD
keyword: SAR
keyword: C-Band
keyword: EU
keyword: EC
keyword: IW
keyword: EW
keyword: SM
spatial: Location
  bbox: POLYGON((-180 -90,-180 90,180 90,180 -90,-180 -90))
qualified relation: Self as JSON-LD (GeoDCAT-AP)
  type: Relationship
  relation: https://fedeo.ceos.org/series/eo:organisationName/EC/sentinel-1-etad/2026/04
  format: application/ld+json
  had role: http://www.iana.org/assignments/relation/self
qualified relation: Root as JSON-LD (GeoDCAT-AP)
  type: Relationship
  relation: https://fedeo.ceos.org
  format: application/ld+json
  had role: https://stacspec.org/def/rel/iana/1.0/root
qualified relation: Parent as JSON-LD (GeoDCAT-AP)
  type: Relationship
  relation: https://fedeo.ceos.org/series/eo:organisationName/EC/sentinel-1-etad/2026
  format: application/ld+json
  had role: https://stacspec.org/def/rel/iana/1.0/parent
qualified relation: OpenSearch Description Document
  type: Relationship
  relation: https://fedeo.ceos.org/collections/series/items/sentinel-1-etad/api
  format: application/opensearchdescription+xml
  had role: http://www.iana.org/assignments/relation/search
qualified relation: Atom format
  type: Relationship
  relation: https://fedeo.ceos.org/collections/sentinel-1-etad
  format: application/atom+xml
  had role: http://www.iana.org/assignments/relation/alternate
qualified relation: Dublin Core metadata
  type: Relationship
  relation: https://fedeo.ceos.org/collections/sentinel-1-etad
  format: application/xml
  had role: http://www.iana.org/assignments/relation/alternate
qualified relation: JSON-LD (schema.org) metadata
  type: Relationship
  relation: https://fedeo.ceos.org/collections/sentinel-1-etad
  format: application/ld+json;profile="https://schema.org"
  had role: http://www.iana.org/assignments/relation/alternate
qualified relation: JSON-LD (GeoDCAT-AP) metadata
  type: Relationship
  relation: https://fedeo.ceos.org/collections/sentinel-1-etad
  format: application/ld+json;profile="http://data.europa.eu/930/"
  had role: http://www.iana.org/assignments/relation/alternate
qualified relation: RDF/XML metadata
  type: Relationship
  relation: https://fedeo.ceos.org/collections/sentinel-1-etad
  format: application/rdf+xml
  had role: http://www.iana.org/assignments/relation/alternate
qualified relation: RDF/XML (schema.org) metadata
  type: Relationship
  relation: https://fedeo.ceos.org/collections/sentinel-1-etad
  format: application/rdf+xml;profile="https://schema.org"
  had role: http://www.iana.org/assignments/relation/alternate
qualified relation: RDF/XML (GeoDCAT-AP) metadata
  type: Relationship
  relation: https://fedeo.ceos.org/collections/sentinel-1-etad
  format: application/rdf+xml;profile="http://data.europa.eu/930/"
  had role: http://www.iana.org/assignments/relation/alternate
qualified relation: Turtle metadata
  type: Relationship
  relation: https://fedeo.ceos.org/collections/sentinel-1-etad
  format: text/turtle
  had role: http://www.iana.org/assignments/relation/alternate
qualified relation: Turtle (schema.org) metadata
  type: Relationship
  relation: https://fedeo.ceos.org/collections/sentinel-1-etad
  format: text/turtle;profile="https://schema.org"
  had role: http://www.iana.org/assignments/relation/alternate
qualified relation: Turtle (GeoDCAT-AP) metadata
  type: Relationship
  relation: https://fedeo.ceos.org/collections/sentinel-1-etad
  format: text/turtle;profile="http://data.europa.eu/930/"
  had role: http://www.iana.org/assignments/relation/alternate
qualified relation: Relationship
  relation: https://fedeo.ceos.org/collections/sentinel-1-etad/items/S1A_S4_ETA__AXDH_20260430T234901_20260430T234926_064316_08190B_2465
  format: application/ld+json
  had role: https://stacspec.org/def/rel/iana/1.0/item
qualified relation: Relationship
  relation: https://fedeo.ceos.org/collections/sentinel-1-etad/items/S1A_IW_ETA__AXDV_20260430T234830_20260430T234852_064316_08190A_E816
  format: application/ld+json
  had role: https://stacspec.org/def/rel/iana/1.0/item
qualified relation: Relationship
  relation: https://fedeo.ceos.org/collections/sentinel-1-etad/items/S1C_IW_ETA__AXDH_20260430T234806_20260430T234826_007452_00F200_C9C6
  format: application/ld+json
  had role: https://stacspec.org/def/rel/iana/1.0/item
qualified relation: Relationship
  relation: https://fedeo.ceos.org/collections/sentinel-1-etad/items/S1A_IW_ETA__AXDV_20260430T234804_20260430T234832_064316_08190A_0D85
  format: application/ld+json
  had role: https://stacspec.org/def/rel/iana/1.0/item
qualified relation: Relationship
  relation: https://fedeo.ceos.org/collections/sentinel-1-etad/items/S1C_IW_ETA__AXDH_20260430T234741_20260430T234808_007452_00F200_2C9E
  format: application/ld+json
  had role: https://stacspec.org/def/rel/iana/1.0/item
qualified relation: Relationship
  relation: https://fedeo.ceos.org/collections/sentinel-1-etad/items/S1A_IW_ETA__AXDV_20260430T234739_20260430T234806_064316_08190A_6CC7
  format: application/ld+json
  had role: https://stacspec.org/def/rel/iana/1.0/item
qualified relation: Relationship
  relation: https://fedeo.ceos.org/collections/sentinel-1-etad/items/S1A_IW_ETA__AXDV_20260430T234714_20260430T234741_064316_08190A_AEDB
  format: application/ld+json
  had role: https://stacspec.org/def/rel/iana/1.0/item
qualified relation: Relationship
  relation: https://fedeo.ceos.org/collections/sentinel-1-etad/items/S1C_IW_ETA__AXDH_20260430T234712_20260430T234743_007452_00F200_2614
  format: application/ld+json
  had role: https://stacspec.org/def/rel/iana/1.0/item
qualified relation: Relationship
  relation: https://fedeo.ceos.org/collections/sentinel-1-etad/items/S1A_IW_ETA__AXDV_20260430T234649_20260430T234716_064316_08190A_7BB6
  format: application/ld+json
  had role: https://stacspec.org/def/rel/iana/1.0/item
qualified relation: Relationship
  relation: https://fedeo.ceos.org/collections/sentinel-1-etad/items/S1A_IW_ETA__AXDV_20260430T234625_20260430T234652_064316_08190A_9AA4
  format: application/ld+json
  had role: https://stacspec.org/def/rel/iana/1.0/item
qualified relation: Relationship
  relation: https://fedeo.ceos.org/collections/sentinel-1-etad/items/S1A_IW_ETA__AXDV_20260430T234559_20260430T234627_064316_08190A_540F
  format: application/ld+json
  had role: https://stacspec.org/def/rel/iana/1.0/item
qualified relation: Relationship
  relation: https://fedeo.ceos.org/collections/sentinel-1-etad/items/S1A_IW_ETA__AXDV_20260430T234531_20260430T234601_064316_08190A_E802
  format: application/ld+json
  had role: https://stacspec.org/def/rel/iana/1.0/item
qualified relation: Relationship
  relation: https://fedeo.ceos.org/collections/sentinel-1-etad/items/S1D_IW_ETA__AXDV_20260430T234427_20260430T234456_002582_0044BD_2A83
  format: application/ld+json
  had role: https://stacspec.org/def/rel/iana/1.0/item
qualified relation: Relationship
  relation: https://fedeo.ceos.org/collections/sentinel-1-etad/items/S1D_IW_ETA__AXDV_20260430T234402_20260430T234429_002582_0044BD_236B
  format: application/ld+json
  had role: https://stacspec.org/def/rel/iana/1.0/item
qualified relation: Relationship
  relation: https://fedeo.ceos.org/collections/sentinel-1-etad/items/S1D_IW_ETA__AXDV_20260430T234337_20260430T234404_002582_0044BD_6583
  format: application/ld+json
  had role: https://stacspec.org/def/rel/iana/1.0/item
qualified relation: Relationship
  relation: https://fedeo.ceos.org/collections/sentinel-1-etad/items/S1D_IW_ETA__AXDV_20260430T234312_20260430T234339_002582_0044BD_3F97
  format: application/ld+json
  had role: https://stacspec.org/def/rel/iana/1.0/item
qualified relation: Relationship
  relation: https://fedeo.ceos.org/collections/sentinel-1-etad/items/S1D_IW_ETA__AXDV_20260430T234247_20260430T234314_002582_0044BD_5634
  format: application/ld+json
  had role: https://stacspec.org/def/rel/iana/1.0/item
qualified relation: Relationship
  relation: https://fedeo.ceos.org/collections/sentinel-1-etad/items/S1D_IW_ETA__AXDV_20260430T234219_20260430T234250_002582_0044BD_3676
  format: application/ld+json
  had role: https://stacspec.org/def/rel/iana/1.0/item
qualified relation: Relationship
  relation: https://fedeo.ceos.org/collections/sentinel-1-etad/items/S1A_IW_ETA__AXDV_20260430T233733_20260430T233809_064315_081909_5A23
  format: application/ld+json
  had role: https://stacspec.org/def/rel/iana/1.0/item
qualified relation: Relationship
  relation: https://fedeo.ceos.org/collections/sentinel-1-etad/items/S1A_IW_ETA__AXDV_20260430T233708_20260430T233735_064315_081909_B523
  format: application/ld+json
  had role: https://stacspec.org/def/rel/iana/1.0/item
qualified relation: Landing Page in JSON media type.
  type: Relationship
  relation: https://fedeo.ceos.org
  format: application/json
  had role: http://www.iana.org/assignments/relation/alternate
description: This collection provides Sentinel-1 Extended Time Annotation Products (ETAD), auxiliary datasets designed to improve the geometric accuracy of Sentinel-1 SAR products. ETAD products contain multiple timing correction layers that can be applied to Sentinel-1 Interferometric Wide Swath (IW), Strip Map (SM), and Extra Wide Swath (EW) acquisitions. The data are distributed in NetCDF format and include corrections for ionospheric and tropospheric delays, solid Earth tides, and system timing effects such as Doppler shifts, bi-static corrections, and height-dependent FM-rate mismatches.
temporal: PeriodOfTime
  start date: 2026-04-01T00:00:00.000Z
  end date: 2026-04-30T23:59:59.999Z
license: other