Viewing archive of Wednesday, 9 July 2003

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 2003 Jul 09 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 190 Issued at 2200Z on 09 Jul 2003

IA. Analysis of Solar Active Regions and Activity from 08-2100Z to 09-2100Z

Solar activity has been low. Region 400 (N05W37) produced two C-class flares, a C1.0 at 08/2135Z, and a C2.4/Sf at 09/1446Z. Region 397 (N14W76) produced several C-class flares, the largest being a C5.8/Sf at 09/1637Z. No significant change was observed in any active region except for Region 402, which grew in magnetic complexity to a beta-gamma configuration. No new regions were numbered today.
IB. Solar Activity Forecast
Solar activity is expected to be low, with isolated chance of M-class flares from Regions 397, 400, or 402.
IIA. Geophysical Activity Summary 08-2100Z to 09-2100Z
The geomagnetic field has been quiet. The greater than 2 MeV electron fluxes at geosynchronous orbit reached high levels today.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be quiet to unsettled, with isolated active to minor storm conditions possible on days two and three due to elevated solar wind speeds as a coronal hole rotates into geoeffective position.
III. Event Probabilities 10 Jul to 12 Jul
Class M45%45%40%
Class X10%05%05%
Proton05%05%05%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       09 Jul 126
  Predicted   10 Jul-12 Jul  135/135/125
  90 Day Mean        09 Jul 124
V. Geomagnetic A Indices
  Observed Afr/Ap 08 Jul  003/005
  Estimated     Afr/Ap 09 Jul  005/007
  Predicted    Afr/Ap 10 Jul-12 Jul  010/010-020/025-015/020
VI. Geomagnetic Activity Probabilities 10 Jul to 12 Jul
A. Middle Latitudes
Active25%40%35%
Minor storm05%10%10%
Major-severe storm01%05%05%
B. High Latitudes
Active30%50%50%
Minor storm05%25%25%
Major-severe storm05%10%10%

All times in UTC

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