Sentinel-1 RFI Maps

Sentinel-1 is a constellation of two spaceborne C-band synthetic aperture radar (SAR) sensors developed and operated by the European Space Agency under the Copernicus Earth Observation programme. This website is the result of the joint effort of Aresys and ESA to use Sentinel-1 data to map and classify the radio frequency interference affecting the C-band.

Starting from June 2019, two maps are produced for each S-1 orbit cycle (12days) of each sensor: an RFI probability map and an interactive RFI map showing the main events. Additionally the RFI database of each orbit cycle can be downloaded.

For further details about how the RFI maps are generated, please refer to the technical specification.

Sentinel 1-A Cycle 220

RFI events

Interactive map showing the main RFI events (>2500K) detected by Sentinel-1 during current orbit cycle. The colour/radius of the circle is proportional to the brightness temperature of the RFI event. Click on the circles to show additional information. 

RFI probability map

Map showing the probability of experiencing RFI of at least 1000K.

Sentinel 1-B Cycle 149

RFI events

Interactive map showing the main RFI events (>2500K) detected by Sentinel-1 during current orbit cycle. The colour/radius of the circle is proportional to the brightness temperature of the RFI event. Click on the circles to show additional information. 

RFI probability map

Map showing the probability of experiencing RFI of at least 1000K.