Sentinel-2
ESA Earth-observation satellite pair; free multispectral imagery used for open-source intelligence.
Last refreshed: 26 April 2026 · Appears in 1 active topic
When anyone with a browser can see Iran's military movements from space, does 'secret' still mean anything?
Timeline for Sentinel-2
Mentioned in: Trump ranks blockade above Iran bombing
Iran Conflict 2026Mentioned in: Sentinel-2 catches 33 IRGC boats off Kargan
Iran Conflict 2026- What is the Sentinel-2 satellite and who can access its images?
- Sentinel-2 is an ESA Earth-observation satellite pair providing free 10-metre optical imagery. All data is publicly accessible within hours of acquisition via the Copernicus Open Access Hub.Source: ESA
- How was Sentinel-2 used to track IRGC boats in 2026?
- OSINT analysts used freely available Sentinel-2 imagery to identify approximately 33 IRGC fast-attack craft clustered at Kargan in the Persian Gulf in late April 2026, providing public evidence of Iranian military positioning.Source: event
- What resolution can Sentinel-2 images achieve?
- Sentinel-2 captures imagery at 10 metres per pixel in its visible and near-infrared bands, sufficient to distinguish vessel types, detect damage to buildings, and monitor port activity.Source: ESA
Background
Sentinel-2 is a pair of European Space Agency (ESA) Earth-observation satellites (Sentinel-2A launched 2015, Sentinel-2B launched 2017) that provide multispectral optical imagery of Earth's surface at 10-metre resolution. Under ESA's open-data policy, all Sentinel-2 imagery is freely available within hours of acquisition, making it the backbone of open-source geospatial intelligence (OSINT) for journalists, researchers, and conflict monitors.
In late April 2026, Sentinel-2 imagery of the Kargan coastal area was used by OSINT analysts to identify approximately 33 IRGC fast-attack craft clustered in Persian Gulf waters — a significant military intelligence finding derived entirely from publicly available satellite data. The satellites revisit any given point on Earth every five days under normal conditions, though coverage can be improved through coordinated tasking with Sentinel-2B.
The use of Sentinel-2 and similar commercial satellite constellations has fundamentally changed The Information landscape of modern conflict: activity that would previously have required classified reconnaissance satellites is now visible to any analyst with internet access and basic GIS skills. During the Iran conflict, Sentinel-2 data has been used to assess damage at nuclear sites, track tanker movements in coastal shallows, and monitor port infrastructure.