Viewing archive of Wednesday, 23 July 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 Jul 23 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 204 Issued at 2200Z on 23 JUL 1997

IA. Analysis of Solar Active Regions and Activity from 22-2100Z to 23-2100Z

SOLAR ACTIVITY HAS BEEN VERY LOW FOR THE PAST 24 HOURS. REGION 8062 (N23W08) REGENERATED SPOTS AND GREW TO A D-TYPE GROUP. REGION 8064 (N24E62) ROTATED INTO BETTER VIEW AND DEVELOPED INTO A C-TYPE GROUP. THE REMAINDER OF THE DISK WAS QUIET. MINOR SURGING WAS REPORTED ALONG THE NE LIMB (NE24-28) BETWEEN 1940-1950 UT.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE VERY LOW.
IIA. Geophysical Activity Summary 22-2100Z to 23-2100Z
THE GEOMAGNETIC FIELD WAS QUIET FOR THE PAST 24 HOURS.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS EXPECTED TO PERSIST AT QUIET LEVELS AT MIDDLE AND LOW LATITUDES, WITH THE POSSIBILITY OF UNSETTLED CONDITIONS AT HIGH LATITUDES.
III. Event Probabilities 24 JUL to 26 JUL
Class M01%01%01%
Class X01%01%01%
Proton01%01%01%
PCAFGREEN
IV. Penticton 10.7 cm Flux
  Observed       23 JUL 076
  Predicted   24 JUL-26 JUL  075/075/075
  90 Day Mean        23 JUL 072
V. Geomagnetic A Indices
OBSERVED AFR/AP 22 JUL  007/004
ESTIMATED AFR/AP 23 JUL  005/008
PREDICTED AFR/AP 24 JUL-26 JUL  005/006-005/008-005/008
VI. Geomagnetic Activity Probabilities 24 JUL to 26 JUL
A. Middle Latitudes
Active10%05%10%
Minor storm05%05%05%
Major-severe storm01%01%01%
B. High Latitudes
Active10%10%10%
Minor storm05%05%05%
Major-severe storm01%01%01%

All times in UTC

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