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 22 Jan 2025 19:50 UT)

Approximate Start of disturbance : 13:24UT 20 Jan 2025 Approximate Peak of disturbance : 16:06UT 20 Jan 2025 Approximate End of disturbance : 16:10UT 20 Jan 2025 Maximum S4 Index : 0.984540 Eightieth percentile of S4 during disturbance : 0.686150 Observed at Sites : Darwin Weipa View Details at the WDC Approximate Start of disturbance : 10:39UT 01 Jan 2025 Approximate Peak of disturbance : 11:25UT 01 Jan 2025 Approximate End of disturbance : 14:40UT 01 Jan 2025 Maximum S4 Index : 0.944720 Eightieth percentile of S4 during disturbance : 0.615195 Observed at Sites : Weipa View Details at the WDC Approximate Start of disturbance : 12:17UT 02 Nov 2024 Approximate Peak of disturbance : 12:59UT 02 Nov 2024 Approximate End of disturbance : 13:10UT 02 Nov 2024 Maximum S4 Index : 1.00000 Eightieth percentile of S4 during disturbance : 0.748285 Observed at Sites : Weipa View Details at the WDC Approximate Start of disturbance : 08:36UT 31 Oct 2024 Approximate Peak of disturbance : 13:13UT 31 Oct 2024 Approximate End of disturbance : 14:50UT 31 Oct 2024 Maximum S4 Index : 1.00000 Eightieth percentile of S4 during disturbance : 0.847568 Observed at Sites : Darwin Niue View Details at the WDC Approximate Start of disturbance : 13:10UT 28 Oct 2024 Approximate Peak of disturbance : 13:32UT 28 Oct 2024 Approximate End of disturbance : 18:20UT 28 Oct 2024 Maximum S4 Index : 1.00000 Eightieth percentile of S4 during disturbance : 0.965363 Observed at Sites : Darwin Weipa View Details at the WDC