Satellite Coverage
Summary
Satellite analysis fresh (latest 2026-04-15 15:07:52 UTC).
Why this matters
Activity at military sites — vehicle movement, construction, equipment staging — can indicate preparation, rotation, or capability changes.
What we saw
SAR data indicates a significant change in VV polarization (+4.0 dB) compared to the baseline, while the VH/VV ratio is -6.2 dB, suggesting increased surface roughness or the presence of new scatterers. The runway appears clear, and there are few vehicles visible, but the SAR change suggests moderate activity.
SAR data indicates normal activity at the Sevastopol naval facility. The polarimetric ratio suggests limited changes in surface roughness or orientation.
SAR data indicates a significant change in VV polarization and a low VH/VV ratio, suggesting increased activity at the Klintsy staging area. The vehicle concentration is assessed as moderate based on the SAR signature.
The satellite image of Baranovichi Air Base shows a clear runway with no visible aircraft. SAR data indicates normal activity levels, suggesting routine operations.
The SAR data indicates normal activity at the Osipovichi storage facility. The vehicle concentration appears low, and no aircraft are observed.
The satellite image of Nizhny-Tagil-UVZ shows a low level of activity. There are few vehicles visible and no aircraft are present.
The Ostrov airbase shows normal SAR activity with no visible aircraft or vehicles on the runway or surrounding areas. The runway appears clear, suggesting routine operations or a period of inactivity.
The Chernyakhovsk airbase shows normal SAR activity with a low polarimetric ratio. The runway is clear, and there are few vehicles observed, indicating a low overall activity level.
The SAR data indicates normal activity at Olenya airbase, with a slight increase in VV polarization and a low VH/VV ratio. The runway appears clear and no aircraft are visible in the image.
The SAR data indicates normal activity at Gusev-garrison. The VH/VV ratio suggests limited changes in surface roughness or vegetation scattering.
SAR data indicates normal activity at Severomorsk-NorthFleet. The polarimetric ratio suggests limited new scattering events.
SAR data indicates a moderate change in activity at the Kronstadt naval facility. The moderate VV increase suggests some new or repositioned metallic structures, while the VH/VV ratio suggests limited cross-polarization scattering, possibly due to vehicle movement or minor equipment changes.
How sure we are
Last data: 2026-04-16 15:07 UTC
Basis: Sentinel-2 optical + Sentinel-1 SAR (revisit ~5 days)
Limitation: Cloud cover can block optical imagery. SAR provides backup but lower interpretability.
How we know
We analyze Sentinel-2 optical imagery (10m resolution) and Sentinel-1 SAR radar of monitored military sites. Changes are detected by comparing current imagery against seasonal baselines.
Primary source: Copernicus Sentinel-2 / Sentinel-1