Viewing archive of Saturday, 10 January 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 Jan 10 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 010 Issued at 2200Z on 10 JAN 1998IA. Analysis of Solar Active Regions and Activity from 09-2100Z to 10-2100Z SOLAR ACTIVITY HAS BEEN VERY LOW. NEWLY NUMBERED REGION
8131 (S26E19), A SMALL B-TYPE GROUP, PRODUCED A B-CLASS SUBFLARE
LATE IN THE PERIOD.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO REMAIN
VERY LOW.
IIA. Geophysical Activity Summary 09-2100Z to 10-2100Z
THE GEOMAGNETIC FIELD HAS BEEN MOSTLY QUIET WITH ISOLATED UNSETTLED
PERIODS OBSERVED AT MIDDLE AND HIGH LATITUDES. THE GREATER THAN 2
MEV ELECTRON FLUX REACHED HIGH LEVELS AT 10/1623UT.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
EXPECTED TO MOSTLY QUIET. THE GREATER THAN 2 MEV ELECTRON FLUX IS
EXPECTED TO DECLINE TO MODERATE TO NORMAL LEVELS BY 12 JANUARY.
III. Event Probabilities 11 JAN to 13 JAN
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 10 JAN 081 Predicted 11 JAN-13 JAN 082/082/082 90 Day Mean 10 JAN 095
V. Geomagnetic A Indices
OBSERVED AFR/AP 09 JAN 009/009 ESTIMATED AFR/AP 10 JAN 006/006 PREDICTED AFR/AP 11 JAN-13 JAN 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 11 JAN to 13 JAN
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 05% | 05% | 05% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 05% | 05% | 05% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
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