Viewing archive of Friday, 10 October 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 Oct 10 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 283 Issued at 2200Z on 10 OCT 1997IA. Analysis of Solar Active Regions and Activity from 09-2100Z to 10-2100Z SOLAR ACTIVITY WAS VERY LOW. NEWLY ASSIGNED REGION 8094
(N23W24) EMERGED IN THE EXTENDED PLAGE IN THE NORTHWEST QUADRANT.
REGIONS 8092 (N24E13) AND 8093 (N31E27) WERE QUIET AND STABLE.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE VERY
LOW.
IIA. Geophysical Activity Summary 09-2100Z to 10-2100Z
THE GEOMAGNETIC FIELD VARIED FROM QUIET TO MINOR STORM LEVELS, WITH
PERSISTENT SUBSTORM ACTIVITY OCCURRING. THIS ACTIVITY WAS THE RESULT
OF PROLONGED PERIODS OF SOUTHWARD IMF. THE GREATER THAN 2 MEV
ELECTRON FLUX MEASURED AT GOES EXCEEDED THE HIGH LEVEL LATE IN THE
PERIOD.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE AT ACTIVE TO MINOR STORM CONDITIONS FOR THE NEXT 24
HOURS. A CORONAL MASS EJECTION ON 07 OCTOBER IS EXPECTED TO PRODUCE
THIS DISTURBANCE. MOSTLY UNSETTLED CONDITIONS SHOULD PREVAIL BY THE
END OF THE INTERVAL.
III. Event Probabilities 11 OCT to 13 OCT
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 10 OCT 084 Predicted 11 OCT-13 OCT 085/085/085 90 Day Mean 10 OCT 084
V. Geomagnetic A Indices
OBSERVED AFR/AP 09 OCT 019/019 ESTIMATED AFR/AP 10 OCT 015/020 PREDICTED AFR/AP 11 OCT-13 OCT 025/025-015/018-010/010
VI. Geomagnetic Activity Probabilities 11 OCT to 13 OCT
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 60% | 40% | 30% |
| Minor storm | 25% | 15% | 10% |
| Major-severe storm | 10% | 05% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 65% | 50% | 40% |
| Minor storm | 25% | 20% | 15% |
| Major-severe storm | 10% | 05% | 05% |
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