Viewing archive of Wednesday, 29 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 29 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 302 Issued at 2200Z on 29 OCT 1997IA. Analysis of Solar Active Regions and Activity from 28-2100Z to 29-2100Z SOLAR ACTIVITY WAS VERY LOW. BOTH SPOTTED REGIONS, 8099
(N20E11) AND 8100 (S21E44) WERE QUIET AND STABLE. NO SIGNIFICANT
FLARE ACTIVITY OCCURRED.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE LOW.
REGION 8100 IS LIKELY TO GENERATE OCCASIONAL C-CLASS ACTIVITY.
IIA. Geophysical Activity Summary 28-2100Z to 29-2100Z
THE GEOMAGNETIC FIELD WAS PREDOMINANTLY QUIET TO UNSETTLED. WEAK
SUBSTORMS BROUGHT EPISODES OF ACTIVE CONDITIONS TO HIGH LATITUDES.
THE GREATER THAN 2 MEV ELECTRON FLUX AT GEOSYNCHRONOUS ORBIT ONCE
AGAIN REACHED HIGH LEVELS DURING THE LATTER PART OF THE PERIOD.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE QUIET TO UNSETTLED FOR THE NEXT THREE DAYS.
III. Event Probabilities 30 OCT to 01 NOV
| Class M | 05% | 05% | 05% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 29 OCT 087 Predicted 30 OCT-01 NOV 090/090/090 90 Day Mean 29 OCT 087
V. Geomagnetic A Indices
OBSERVED AFR/AP 28 OCT 011/013 ESTIMATED AFR/AP 29 OCT 009/010 PREDICTED AFR/AP 30 OCT-01 NOV 010/015-010/010-005/008
VI. Geomagnetic Activity Probabilities 30 OCT to 01 NOV
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 20% | 10% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 25% | 25% | 20% |
| Minor storm | 10% | 10% | 05% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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