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
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 |