Viewing archive of Tuesday, 3 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 03 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 034 Issued at 2200Z on 03 FEB 1998IA. Analysis of Solar Active Regions and Activity from 02-2100Z to 03-2100Z SOLAR ACTIVITY WAS VERY LOW. ISOLATED, B-CLASS X-RAY
BURSTS OCCURRED, NONE OF WHICH WERE OPTICALLY CORRELATED. NEW
REGIONS 8150 (N25W29) AND 8151 (S24E75) WERE NUMBERED.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE VERY
LOW TO LOW. THERE IS A FAIR CHANCE FOR AN ISOLATED C-CLASS SUBFLARE.
IIA. Geophysical Activity Summary 02-2100Z to 03-2100Z
THE GEOMAGNETIC FIELD WAS QUIET.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE QUIET.
III. Event Probabilities 04 FEB to 06 FEB
| Class M | 10% | 10% | 10% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 03 FEB 089 Predicted 04 FEB-06 FEB 090/092/092 90 Day Mean 03 FEB 096
V. Geomagnetic A Indices
OBSERVED AFR/AP 02 FEB 002/003 ESTIMATED AFR/AP 03 FEB 002/002 PREDICTED AFR/AP 04 FEB-06 FEB 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 04 FEB to 06 FEB
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 10% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 10% | 10% | 10% |
| Major-severe storm | 01% | 01% | 01% |
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