Recent Scintillation Events

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

SWS 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 SWS if you have any questions about these events or have any feedback regarding ionospheric scintillation services.

(last updated 21 May 2022 10:00 UT)

Approximate Start of disturbance : 13:11UT 25 Apr 2022 Approximate Peak of disturbance : 13:33UT 25 Apr 2022 Approximate End of disturbance : 13:40UT 25 Apr 2022 Maximum S4 Index : 1.00000 Eightieth percentile of S4 during disturbance : 0.780670 Observed at Sites : Darwin View Details at the WDC Approximate Start of disturbance : 09:46UT 09 Apr 2022 Approximate Peak of disturbance : 09:57UT 09 Apr 2022 Approximate End of disturbance : 10:01UT 09 Apr 2022 Maximum S4 Index : 0.865670 Eightieth percentile of S4 during disturbance : 0.715770 Observed at Sites : Niue View Details at the WDC Approximate Start of disturbance : 08:22UT 23 Mar 2022 Approximate Peak of disturbance : 08:22UT 23 Mar 2022 Approximate End of disturbance : 08:40UT 23 Mar 2022 Maximum S4 Index : 0.878680 Eightieth percentile of S4 during disturbance : 0.742920 Observed at Sites : Niue View Details at the WDC Approximate Start of disturbance : 15:05UT 17 Mar 2022 Approximate Peak of disturbance : 15:20UT 17 Mar 2022 Approximate End of disturbance : 15:20UT 17 Mar 2022 Maximum S4 Index : 1.00000 Eightieth percentile of S4 during disturbance : 0.827130 Observed at Sites : Darwin View Details at the WDC Approximate Start of disturbance : 13:00UT 02 Mar 2022 Approximate Peak of disturbance : 13:16UT 02 Mar 2022 Approximate End of disturbance : 13:20UT 02 Mar 2022 Maximum S4 Index : 0.773650 Eightieth percentile of S4 during disturbance : 0.691940 Observed at Sites : Darwin View Details at the WDC