Viewing archive of Tuesday, 11 February 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 Feb 11 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 042 Issued at 2200Z on 11 FEB 1997IA. Analysis of Solar Active Regions and Activity from 10-2100Z to 11-2100Z SOLAR ACTIVITY REMAINED VERY LOW. THE DISK WAS
SPOTLESS.
IB. Solar Activity Forecast
SOLAR ACTIVITY SHOULD REMAIN VERY LOW
FOR THE NEXT THREE DAYS.
IIA. Geophysical Activity Summary 10-2100Z to 11-2100Z
THE GEOMAGNETIC FIELD WAS PREDOMINANTLY UNSETTLED TO ACTIVE. PERIODS
OF ISOLATED MINOR STORM LEVELS WERE OBSERVED AT SOME HIGH LATITUDE
SITES. ENERGETIC ELECTRON FLUXES AT GEOSYNCHRONOUS ORBIT WERE AT
HIGH TO ALMOST VERY HIGH LEVELS FOR MOST OF THE PERIOD.
IIB. Geophysical Activity Forecast
UNSETTLED TO SLIGHTLY ACTIVE
CONDITIONS ARE FORECAST FOR 12 FEB AS THIS MAGNETIC CLOULD RELATED
DISTURBANCE SUBSIDES. QUIET TO UNSETTLED CONDITIONS ARE EXPECTED ON
13-14 FEB.
III. Event Probabilities 12 FEB to 14 FEB
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 11 FEB 071 Predicted 12 FEB-14 FEB 071/071/071 90 Day Mean 11 FEB 078
V. Geomagnetic A Indices
OBSERVED AFR/AP 10 FEB 021/021 ESTIMATED AFR/AP 11 FEB 017/019 PREDICTED AFR/AP 12 FEB-14 FEB 010/010-005/008-005/005
VI. Geomagnetic Activity Probabilities 12 FEB to 14 FEB
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 10% | 10% |
| Minor storm | 10% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 30% | 15% | 10% |
| Minor storm | 15% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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