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Realtime Pi2 detection from SAMNET

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Realtime magnetometer data and substorm onsets at York

Real-time York plot

The graph above shows the realtime magnetometer data from the SAMNET York site, over the past 24 hours. Possible substorm onsets are displayed as red marker bars, and the graph is updated every 20 minutes.

To detect substorm onsets, we use the Pi2 wavelet analysis technique and our own interpretation routines. Substorm onset markers are placed where there are two or more minutes of Pi2 activity following 10 or more quiet minutes.

Possible substorm onsets over the past 24 hours

TimeComponentNotes
No onsets found

Substorm onset database

Details of probable substorm onsets can also be found in the STP events database.

Page updated: 2006-03-30 22:43:02 UT.

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