Viewing archive of Friday, 10 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 10 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 010 Issued at 2200Z on 10 JAN 1997IA. Analysis of Solar Active Regions and Activity from 09-2100Z to 10-2100Z SOLAR ACTIVITY WAS VERY LOW. NO FLARES OCCURRED.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE VERY
LOW.
IIA. Geophysical Activity Summary 09-2100Z to 10-2100Z
THE GEOMAGNETIC FIELD RANGED FROM QUIET TO MAJOR STORM LEVELS. STORM
CONDITIONS WERE OBSERVED AT MANY STATIONS FROM 10/0600-1200Z. THIS
ACTIVITY WAS IN RESPONSE TO SOLAR WIND CHARACTERIZED BY STRONG
SOUTHWARD IMF OVER A PERIOD OF SEVERAL HOURS. SOLAR WIND DATA FROM A
VARIETY OF SOURCES SUGGEST THE PASSAGE OF A MAGNETIC PLASMA CLOUD
WHICH FIRST ENCOUNTERED THE EARTH AT 10/0100Z. THIS CLOUD MAY BE
RELATED TO A LARGE CME OBSERVED BY THE SOHO SPACECRAFT ON 6 JANUARY.
WIND SPACECRAFT DATA SUGGEST THAT THIS STRUCTURE COMPLETED ITS PASS
BY THE EARTH BY ABOUT 10/1800Z. THE GEOMAGNETIC FIELD HAS BEEN QUIET
TO UNSETTLED SINCE ABOUT 10/1500Z. THE GREATER THAN 2 MEV ELECTRON
FLUX INCREASED FROM NORMAL TO HIGH LEVELS AT 10/1640Z AND HAS
REMAINED THERE.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE QUIET TO UNSETTLED.
III. Event Probabilities 11 JAN to 13 JAN
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 10 JAN 075 Predicted 11 JAN-13 JAN 076/076/076 90 Day Mean 10 JAN 076
V. Geomagnetic A Indices
OBSERVED AFR/AP 09 JAN 006/006 ESTIMATED AFR/AP 10 JAN 018/030 PREDICTED AFR/AP 11 JAN-13 JAN 010/012-010/010-010/010
VI. Geomagnetic Activity Probabilities 11 JAN to 13 JAN
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 05% |
| Minor storm | 05% | 05% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 10% | 10% |
| Minor storm | 10% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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