Recent Scintillation Events

The following is a list of recent periods of high and sustained ionospheric scintillation as detected in the ASWFC scintillation monitor network. Note that these are auto-detected and not manually quality controlled.

ASWFC provides a free email alert service which notifies subscribers of scintillation events as they occur. To subscribe to this service, please visit the Ionospheric Scintillation alert page.

To see the raw data for these events in more detail, please look up the relevant locations and times at the World Data Centre ionospheric scintillation page.

Please contact ASWFC if you have any questions about these events or have any feedback regarding ionospheric scintillation services.

(last updated 25 Mar 2025 23:45 UT)

Approximate Start of disturbance : 11:51UT 21 Mar 2025 Approximate Peak of disturbance : 12:35UT 21 Mar 2025 Approximate End of disturbance : 13:10UT 21 Mar 2025 Maximum S4 Index : 1.00000 Eightieth percentile of S4 during disturbance : 0.857540 Observed at Sites : Darwin Weipa View Details at the WDC Approximate Start of disturbance : 11:15UT 20 Mar 2025 Approximate Peak of disturbance : 11:59UT 20 Mar 2025 Approximate End of disturbance : 13:25UT 20 Mar 2025 Maximum S4 Index : 1.00000 Eightieth percentile of S4 during disturbance : 0.826516 Observed at Sites : Darwin Weipa View Details at the WDC Approximate Start of disturbance : 12:04UT 16 Mar 2025 Approximate Peak of disturbance : 13:16UT 16 Mar 2025 Approximate End of disturbance : 13:20UT 16 Mar 2025 Maximum S4 Index : 1.00000 Eightieth percentile of S4 during disturbance : 0.839830 Observed at Sites : Darwin Weipa View Details at the WDC Approximate Start of disturbance : 10:39UT 15 Mar 2025 Approximate Peak of disturbance : 12:15UT 15 Mar 2025 Approximate End of disturbance : 14:46UT 15 Mar 2025 Maximum S4 Index : 1.00000 Eightieth percentile of S4 during disturbance : 0.742458 Observed at Sites : Darwin Weipa View Details at the WDC Approximate Start of disturbance : 12:46UT 12 Mar 2025 Approximate Peak of disturbance : 12:57UT 12 Mar 2025 Approximate End of disturbance : 13:08UT 12 Mar 2025 Maximum S4 Index : 0.789650 Eightieth percentile of S4 during disturbance : 0.690210 Observed at Sites : Darwin View Details at the WDC