Viewing archive of Thursday, 29 October 1998
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 1998 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 1998IA. Analysis of Solar Active Regions and Activity from 28-2100Z to 29-2100Z SOLAR ACTIVITY WAS LOW. ONE C-CLASS FLARE OCCURRED.
SEVERAL NEW REGIONS WERE NUMBERED TODAY. REGION 8369 (N19E05) WAS
SPLIT INTO TWO SEPARATE REGIONS. THE EASTERN PART IS NEW REGION
8372 (N21E17). OTHER NEW NUMBERED REGIONS ARE: REGION 8373
(S24E57), REGION 8374 (S18E67), AND REGION 8375 (N18E71).
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO REMAIN
LOW.
IIA. Geophysical Activity Summary 28-2100Z to 29-2100Z
THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED. THE GREATER THAN 2 MEV
ELECTRON FLUX WENT FROM MODERATE TO HIGH RANGE.
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 110 Predicted 30 OCT-01 NOV 115/115/120 90 Day Mean 29 OCT 131
V. Geomagnetic A Indices
OBSERVED AFR/AP 28 OCT 008/012 ESTIMATED AFR/AP 29 OCT 005/010 PREDICTED AFR/AP 30 OCT-01 NOV 005/010-010/008-010/008
VI. Geomagnetic Activity Probabilities 30 OCT to 01 NOV
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 20% | 20% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 25% | 25% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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