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SAR Constellation Technical Specs

Umbra produces the highest resolution SAR data ever offered commercially.

Imaging Modes

Spotlight

Imaging mode: Spotlight

Standard Scene Size

4 x 4km footprint


Ground Plane Resolution

25cm - 2m

Stripmap*

Imaging mode: Stripmap*

Swath

6 - 20km


Ground Plane Resolution

1 - 2m

Extended Dwell*

Imaging mode: Extended Dwell*

Standard Scene Size

4 x 4km footprint


Ground Plane Resolution

25cm - 2m

Scanning*

Imaging mode: Scanning*

Scan Area

Arbitrary polygon


Ground Plane Resolution

1 x 10m

*Coming Soon

Umbra SAR data

Satellite Specs

AttributeValue
Radar Antenna Size11.3m^2
Radar Bandwidth1,200 MHz
Radar PowerUp to 500w peak power
Mass~70kg
Launch VolumeSub-ESPA

Initial Orbital Specs

AttributeValue
Altitude450 - 600km
Inclination97.4 degrees (polar orbit)
Nominal Orbital Height517km
Ground Track Repeat1 week

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:

RegionNear termObjective Constellation
Coherent RevisitMean Time To AccessCoherent RevisitMean Time To Access
Arctic & Antarctic<8 hrs<2.5 hrs<1 hrs<10 mins
Mid-Latitude<3 days<8 hrs<8 hrs<50 mins
Equatorial<3 days<14 hrs<9.5 hrs<95 mins
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