Sensor · Spaceborne

UMBRA-SAR

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Missions → Umbra SAR constellation (Operational)

X-band synthetic-aperture radar payload flown on Umbra satellites.

Sensor

UMBRA-SAR is an active X-band synthetic-aperture radar instrument for the UMBRA satellite programme, with 1200 MHz chirp bandwidth and HH, VV, and SS polarisation metadata. ^[1]

Its public mode set covers Spotlight, Extended Dwell, Stripmap, and Scan. Spotlight and Extended Dwell are recorded at 0.25 m range and azimuth resolution over 4 km swath; Stripmap is recorded at 3 m resolution over 20 km swath; and Scan is recorded at 10 m resolution over 100 km swath. ^[1]

Dwell, Spotlight, and Scan are current public collection modes, with Scan described at 50 cm to 2 m resolution for larger-area collections. SAR backscatter is demonstrated for the instrument, with no additional inference about classified modes or collection cadence. ^[2] ^[1]

Operator pricing

Pricing not publicly listed by operator

Supply chain position

carried by Umbra SAR constellation

Methods this sensor implements

Demonstrated

SAR backscatter imagingvia Umbra SAR constellation
UMBRA-SAR is an X-band SAR imaging radar flown on an operational programme.

Capable, undemonstrated

None on record.

Topics this relates to

Ocean surface winds SAR backscatter imaging(demonstrated)well suited

Sea state SAR backscatter imaging(demonstrated)well suited

Wind energy siting SAR backscatter imaging(demonstrated)well suited

Economic activity intelligence SAR backscatter imaging(demonstrated)adequate

Snow cover SAR backscatter imaging(demonstrated)adequate

Ocean currents SAR backscatter imaging(demonstrated)marginal

Sources

[1]WMO OSCAR UMBRA-SAR instrument recordagency doc2026-06-16
[2]Umbra remote sensing modesoperator marketing2026-06-16
[3]WMO OSCAR UMBRA satellite programme recordagency doc2026-06-16

Cite https://eo-atlas.org/products/sensor/umbra-sar Markdown twin → Field definitions → Suggest a correction →

How to cite this page

Plain text

UMBRA-SAR. EO-Atlas, SpectraWorks B.V. https://eo-atlas.org/products/sensor/umbra-sar (CC BY 4.0)

BibTeX

@misc{eoatlas:products:sensor:umbra-sar,
  title = {UMBRA-SAR},
  author = {{EO-Atlas}},
  publisher = {SpectraWorks B.V.},
  note = {CC BY 4.0},
  url = {https://eo-atlas.org/products/sensor/umbra-sar}
}