Viewing archive of Sunday, 9 January 2000
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 2000 Jan 09 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 009 Issued at 2200Z on 09 JAN 2000IA. Analysis of Solar Active Regions and Activity from 08-2100Z to 09-2100Z SOLAR ACTIVITY WAS LOW. ONLY ISOLATED SMALL C-CLASS
EVENTS OCCURRED. NEWLY ASSIGNED REGION 8824 (S13E75) HAS BEEN ONE OF
THE FEW BRIGHT SPOTS ON AN OTHERWISE DULL DISK. MINOR SURGING
PERSISTS NEAR SE15.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO CONTINUE
LOW.
IIA. Geophysical Activity Summary 08-2100Z to 09-2100Z
THE GEOMAGNETIC FIELD WAS QUIET. THE GREATER THAN 2 MEV ELECTRON FLUX
AT GEOSYNCHRONOUS ORBIT WAS HIGH.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE GENERALLY UNSETTLED. ACTIVE CONDITIONS MAY OCCUR ON
11 JANUARY WHEN A HIGH-SPEED STREAM IS DUE.
III. Event Probabilities 10 JAN to 12 JAN
| Class M | 10% | 10% | 10% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 09 JAN 161 Predicted 10 JAN-12 JAN 165/170/175 90 Day Mean 09 JAN 176
V. Geomagnetic A Indices
OBSERVED AFR/AP 08 JAN 003/006 ESTIMATED AFR/AP 09 JAN 003/005 PREDICTED AFR/AP 10 JAN-12 JAN 010/012-015/020-010/012
VI. Geomagnetic Activity Probabilities 10 JAN to 12 JAN
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 30% | 20% |
| Minor storm | 05% | 10% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 25% | 40% | 25% |
| Minor storm | 05% | 10% | 05% |
| Major-severe storm | 01% | 01% | 01% |
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