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 UTC
Prepared 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 1997

IA. 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 M01%01%01%
Class X01%01%01%
Proton01%01%01%
PCAFGREEN
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
Active10%10%05%
Minor storm05%05%01%
Major-severe storm01%01%01%
B. High Latitudes
Active15%10%10%
Minor storm10%05%05%
Major-severe storm01%01%01%

All times in UTC

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