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27 October 2014

We are discontinuing analysis and display of auroral boundary information derived from NOAA's TIROS/POES satellites. The data on which this was based, auroral power-index analyses of data from precipitating electron sensors on the TIROS/POES satellites, has become too unreliable to be of any use. The source of these data, the NOAA Space Weather Prediction Center (SWPC), is changing to a different analysis method which may be of interest to previous users of this NWRA product.

For those who need estimates of Qe we are providing a new plot of Qe derived from the GFZ Postdam provisional real-time Kp values.

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