Viewing archive of Friday, 29 January 1999
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 1999 Jan 29 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 029 Issued at 2200Z on 29 JAN 1999IA. Analysis of Solar Active Regions and Activity from 28-2100Z to 29-2100Z SOLAR ACTIVITY HAS BEEN VERY LOW.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO REMAIN
VERY LOW.
IIA. Geophysical Activity Summary 28-2100Z to 29-2100Z
GEOMAGNETIC ACTIVITY HAS BEEN UNSETTLED.
IIB. Geophysical Activity Forecast
GEOMAGNETIC ACTIVITY IS
EXPECTED TO REMAIN QUIET TO UNSETTLED.
III. Event Probabilities 30 JAN to 01 FEB
| Class M | 10% | 10% | 10% |
| Class X | 01% | 01% | 01% |
| Proton | 05% | 05% | 05% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 29 JAN 118 Predicted 30 JAN-01 FEB 115/115/115 90 Day Mean 29 JAN 144
V. Geomagnetic A Indices
OBSERVED AFR/AP 28 JAN 006/007 ESTIMATED AFR/AP 29 JAN 007/008 PREDICTED AFR/AP 30 JAN-01 FEB 005/005-006/007-007/009
VI. Geomagnetic Activity Probabilities 30 JAN to 01 FEB
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 05% | 05% | 05% |
| Minor storm | 02% | 02% | 02% |
| Major-severe storm | 02% | 02% | 02% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 06% | 06% | 07% |
| Minor storm | 03% | 03% | 03% |
| Major-severe storm | 02% | 02% | 02% |
All times in UTC
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