Viewing archive of Monday, 20 January 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 Jan 20 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 020 Issued at 2200Z on 20 JAN 1997IA. Analysis of Solar Active Regions and Activity from 19-2100Z to 20-2100Z SOLAR ACTIVITY WAS VERY LOW. A B4/SF FLARE WAS DETECTED
IN REGION 8011 (S06W43). THIS REGION IS NOW SPOTLESS AND RELATIVELY
STABLE, AS IS THE REMAINDER OF THE VISIBLE DISK.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO REMAIN
VERY LOW THROUGHOUT THE FORECAST PERIOD.
IIA. Geophysical Activity Summary 19-2100Z to 20-2100Z
THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED FOR THE PAST 24 HOURS.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE QUIET FOR THE ENTIRE FORECAST PERIOD.
III. Event Probabilities 21 JAN to 23 JAN
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 20 JAN 077 Predicted 21 JAN-23 JAN 076/076/076 90 Day Mean 20 JAN 077
V. Geomagnetic A Indices
OBSERVED AFR/AP 19 JAN 006/004 ESTIMATED AFR/AP 20 JAN 005/004 PREDICTED AFR/AP 21 JAN-23 JAN 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 21 JAN to 23 JAN
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 10% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 10% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
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