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 x Length
5 - 20km x 50km
Ground Plane Resolution
3m
Extended Dwell*

Standard Scene Size
4 x 4km footprint
Ground Plane Resolution
25cm - 2m
Scanning*

Scan Area
Arbitrary polygon
Ground Plane Resolution
10m
*Coming Soon

Satellite Specs
Attribute | Value |
---|---|
Radar Antenna Size | >10 m² |
Radar Bandwidth | 1,200 MHz |
Radar Power | >500w peak power |
Mass | ~70kg |
Launch Volume | Sub-ESPA |
Initial Orbital Specs
Attribute | Value |
---|---|
Altitude | 450 - 600km |
Inclination | 97.4 degrees (polar orbit) |
Nominal Orbital Height | 560km |
Ground Track Repeat | 2 weeks |
Collection Capability
Attribute | Value |
---|---|
Polarization | HH or VV |
Ground Range | 170 - 1100km on either side of flight path |
Look Geometry
Attribute | Value |
---|---|
Squint Angle | 45º to 135º |
Grazing Angle | 20º to 70º |
Look Direction | Left or Right |

Revisit Rate
Estimated average revisit rates by region and type:
Region | Number of satellites on orbit | |||
---|---|---|---|---|
1 | 4 | 12 | 24 | |
Arctic & Antarctic Regions | 2 hrs | 30 mins | 15 mins | 7.5 mins |
Mid-Latitude Regions | 7 hrs | 1.5 hrs | 30 mins | 15 mins |
Equatorial Region | 9 hrs | 2 hrs | 45 mins | 22.5 mins |
Coherent Repeat | 14 days | 3.5 days | 1.7 days | 14 hrs |