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SAR Constellation Technical Specs

Umbra produces the highest resolution SAR data ever offered commercially.

Imaging Modes

Spotlight


Standard Scene Size

4 x 4km footprint


Ground Plane Resolution

25cm - 2m

Stripmap*


Swath

6 - 20km


Ground Plane Resolution

1 - 2m

Extended Dwell*


Standard Scene Size

4 x 4km footprint


Ground Plane Resolution

25cm - 2m

Ocean Scanning*


Swath

85 - 450km


Ground Plane Resolution

1 x 10m

*Coming Soon

Umbra SAR data

Satellite Specs

AttributeValue
Radar Antenna Size>10 m²
Radar Bandwidth1,200 MHz
Radar Power>500w peak power
Mass~70kg
Launch VolumeSub-ESPA

Initial Orbital Specs

AttributeValue
Altitude450 - 600km
Inclination97.4 degrees (polar orbit)
Nominal Orbital Height560km
Ground Track Repeat2 weeks

Collection Capability

AttributeValue
PolarizationHH or VV
Ground Range170 - 1100km on either side of flight path

Look Geometry

AttributeValue
Squint Angle45º to 135º
Grazing Angle20º to 70º
Look DirectionLeft or Right
Umbra satellite in space

Revisit Rate

Estimated average revisit rates by region and type:

RegionNumber of satellites on orbit
141224
Arctic & Antarctic Regions2 hrs30 mins15 mins7.5 mins
Mid-Latitude Regions7 hrs1.5 hrs30 mins15 mins
Equatorial Region9 hrs2 hrs45 mins22.5 mins
Coherent Repeat14 days3.5 days1.7 days14 hrs
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