Viewing archive of Sunday, 1 February 1998
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 1998 Feb 01 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 032 Issued at 2200Z on 01 FEB 1998IA. Analysis of Solar Active Regions and Activity from 31-2100Z to 01-2100Z SOLAR ACTIVITY WAS VERY LOW. ONLY A SINGLE, MINOR,
UNCORELATED B1 X-RAY BURST WAS DETECTED. THE VISIBLE DISK REMAINED
QUIET AND STABLE.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO REMAIN
VERY LOW FOR THE ENTIRE FORECAST PERIOD.
IIA. Geophysical Activity Summary 31-2100Z to 01-2100Z
THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED AT ALL LATITUDES.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
EXPECTED TO REMAIN QUIET.
III. Event Probabilities 02 FEB to 04 FEB
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 01 FEB 091 Predicted 02 FEB-04 FEB 092/090/088 90 Day Mean 01 FEB 097
V. Geomagnetic A Indices
OBSERVED AFR/AP 31 JAN 010/009 ESTIMATED AFR/AP 01 FEB 010/010 PREDICTED AFR/AP 02 FEB-04 FEB 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 02 FEB to 04 FEB
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 10% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 02% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
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