totalview
Synthetic aperture radar image of a port

Data

SAR

Synthetic aperture radar imagery, day and night, through cloud and smoke.

all-weatherAny weather, day or night

Specifications

Best resolution
25 cmICEYE, Umbra, Capella, Synspective
Imaging modes
Spotlightstripmap, scan · 5 × 5 km to 100+ km swaths
Band
X-bandICEYE, Capella, Umbra, Synspective, KOMPSAT-5 · C-band (RADARSAT)
Revisit
Multiple passes a day over Greece across the combined fleet
Interferometry
Displacement to ~1 mm/yr with a repeat stack
Night collection
Yesidentical quality

Dwell

The seconds a spotlight beam is held on one target. A longer dwell sees it across a wider angle, and the angle sets the azimuth resolution.

Side view, angles exaggerated · X-band 3.1 cm · 7.6 km/s · 700 km slant range

Dwell
Synthetic aperture
Angular span
Azimuth resolution
Looks at 0.35 m
Vessels at a pier, X-band spotlightVessels at a pier, X-band spotlightVessels at a pier, X-band spotlightVessels at a pier, X-band spotlight
A 0.35 m frame averaged along azimuth to each resolution.

Gallery

Select a frame to open it at full resolution.

Waterfront and ships at anchor, X-band spotlight

Detects

  • Flood extent while the storm is still overhead
  • Vessels at sea, including those not transmitting AIS
  • Ground displacement to the millimetre, via interferometry
  • Structures, soil moisture, surface roughness

Limits

  • Not intuitive to read: colour and texture mean different things
  • Steep terrain produces shadow and layover
  • Not the tool for identifying what a small object is

Satellites

Sorted by resolution. Operators’ published figures.

SatelliteOperatorResolutionLaunchedStatus
ICEYEICEYE25 cm Dwell Precise · 50 cm Spot Fine · 1 m Spot · 3 m Strip2018–Taskable
Capella AcadiaCapella Space25 cm Spotlight Ultra · 50 cm Spotlight · 1.2 m Stripmap2023–Taskable
UmbraUmbra25 cm–1 m Spotlight · 50 cm–2 m Scan2021–Taskable
StriXSynspective25 cm Staring Spotlight · 3 m Stripmap2020–Taskable
KOMPSAT-5SI Imaging Services85 cm–1 m Spot · 3 m Strip · 20 m Wide2013Taskable
RADARSAT-2MDA Space1 m Spotlight · 3 m Ultra-Fine · 100 m ScanSAR2007Taskable
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