Viewing archive of Tuesday, 2 December 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 Dec 02 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 336 Issued at 2200Z on 02 DEC 1997IA. Analysis of Solar Active Regions and Activity from 01-2100Z to 02-2100Z
SOLAR ACTIVITY WAS LOW. REGION 8113 (N20W03) HAS
GENERATED ONLY MINOR C-CLASS EVENTS DURING THE PAST 24 HOURS, THE
MOST RECENT A C1/SF AT 02/1632Z. ALTHOUGH THE REGION'S MAGNETIC
STRUCTURE NOW APPEARS FAIRLY DISORGANIZED, IT CONTINUES AS A
SIGNIFICANT 'EKI' BETA-GAMMA GROUP WITH AS MANY AS 60 SPOTS.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE
MODERATE. REGION 8113 MAINTAINS THE POTENTIAL FOR MINOR M-CLASS
ACTIVITY, AS WELL AS AN OUTSIDE CHANCE FOR AN ISOLATED MAJOR FLARE.
IIA. Geophysical Activity Summary 01-2100Z to 02-2100Z
THE GEOMAGNETIC FIELD HAS BEEN QUIET FOR THE PAST 24 HOURS.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE MOSTLY QUIET, WITH ISOLATED PERIODS OF UNSETTLED
CONDITIONS, FOR THE NEXT THREE DAYS.
III. Event Probabilities 03 DEC to 05 DEC
| Class M | 50% | 50% | 50% |
| Class X | 05% | 05% | 05% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 02 DEC 112 Predicted 03 DEC-05 DEC 115/115/110 90 Day Mean 02 DEC 094
V. Geomagnetic A Indices
OBSERVED AFR/AP 01 DEC 003/003 ESTIMATED AFR/AP 02 DEC 004/005 PREDICTED AFR/AP 03 DEC-05 DEC 008/005-008/005-005/005
VI. Geomagnetic Activity Probabilities 03 DEC to 05 DEC
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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