Viewing archive of Sunday, 23 February 1997
Solar activity report
Any mentioned solar flare in this report has a scaling factor applied by the Space Weather Prediction Center (SWPC). Because of the SWPC scaling factor, solar flares are reported as 42% smaller than for the science quality data. The scaling factor has been removed from our archived solar flare data to reflect the true physical units.
Report of Solar-Geophysical Activity 1997 Feb 23 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 054 Issued at 2200Z on 23 FEB 1997IA. Analysis of Solar Active Regions and Activity from 22-2100Z to 23-2100Z SOLAR ACTIVITY WAS VERY LOW. THE VISIBLE DISK IS
CURRENTLY SPOTLESS AND FEATURELESS.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE VERY
LOW.
IIA. Geophysical Activity Summary 22-2100Z to 23-2100Z
THE GEOMAGNETIC FIELD HAS BEEN QUIET TO UNSETTLED AT ALL LATITUDES.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE QUIET TO UNSETTLED WITH AN INCREASE TO ACTIVE LEVELS
ON DAYS 2 AND 3 DUE TO RECURRENT ACTIVITY.
III. Event Probabilities 24 FEB to 26 FEB
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 23 FEB 075 Predicted 24 FEB-26 FEB 074/074/073 90 Day Mean 23 FEB 077
V. Geomagnetic A Indices
OBSERVED AFR/AP 22 FEB 008/006 ESTIMATED AFR/AP 23 FEB 010/010 PREDICTED AFR/AP 24 FEB-26 FEB 015/015-015/010-010/008
VI. Geomagnetic Activity Probabilities 24 FEB to 26 FEB
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 20% | 25% |
| Minor storm | 05% | 10% | 10% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 20% | 25% | 30% |
| Minor storm | 10% | 15% | 15% |
| Major-severe storm | 01% | 05% | 05% |
All times in UTC
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