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 01 Mar 2021 20:10 UT)

Approximate Start of disturbance : 07:21UT 26 Aug 2018 Approximate Peak of disturbance : 07:40UT 26 Aug 2018 Approximate End of disturbance : 07:40UT 26 Aug 2018 Maximum S4 Index : 0.765250 Eightieth percentile of S4 during disturbance : 0.605490 Observed at Sites : Niue View Details at the WDC Approximate Start of disturbance : 11:03UT 20 Apr 2018 Approximate Peak of disturbance : 11:12UT 20 Apr 2018 Approximate End of disturbance : 11:20UT 20 Apr 2018 Maximum S4 Index : 0.957730 Eightieth percentile of S4 during disturbance : 0.749530 Observed at Sites : Weipa View Details at the WDC Approximate Start of disturbance : 20:02UT 13 Feb 2018 Approximate Peak of disturbance : 20:02UT 13 Feb 2018 Approximate End of disturbance : 20:41UT 13 Feb 2018 Maximum S4 Index : 1.00000 Eightieth percentile of S4 during disturbance : 1.00000 Observed at Sites : Niue View Details at the WDC Approximate Start of disturbance : 11:48UT 23 Sep 2016 Approximate Peak of disturbance : 12:02UT 23 Sep 2016 Approximate End of disturbance : 12:10UT 23 Sep 2016 Maximum S4 Index : 1.00000 Eightieth percentile of S4 during disturbance : 0.871900 Observed at Sites : Weipa View Details at the WDC Approximate Start of disturbance : 14:01UT 26 Oct 2015 Approximate Peak of disturbance : 14:07UT 26 Oct 2015 Approximate End of disturbance : 14:17UT 26 Oct 2015 Maximum S4 Index : 0.870600 Eightieth percentile of S4 during disturbance : 0.809840 Observed at Sites : Weipa View Details at the WDC