polwarden ← Back to 2026-03-21 briefingSatellite Coverage
Normal 2026-03-21
Summary
Satellite analysis fresh (latest 2026-03-21 18:57 UTC).
Why this matters
Activity at military sites — vehicle movement, construction, equipment staging — can indicate preparation, rotation, or capability changes.
What we saw
Millerovo-airbase activity
Radar: No change
Severomorsk-NorthFleet activity
Radar: No change Fuel activity 8%
Smolensk-airbase activity
Radar: Moderate change Fuel activity 2%
Baranovichi-Belarus activity
Radar: No change Fuel activity 3%
Machulishchy-Belarus activity
Radar: No change Fuel activity 4%
Osipovichi-storage activity
Radar: No change Fuel activity 2%
Klintsy-staging activity
Radar: Moderate change Fuel activity 2%
Morozovsk-airbase activity
Radar: No change Exposed ground detected
Kursk-Khalino activity
Radar: No change Exposed ground detected Fuel activity 2%
Bryansk-staging activity
Radar: No change Exposed ground detected Fuel activity 16%
Alabino-training activity
Radar: Moderate change
Brest-garrison activity
Radar: No change Fuel activity 4%
How sure we are
Last data: 2026-05-05 15:04 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