Viewing archive of Saturday, 6 July 2002

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 2002 Jul 06 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 187 Issued at 2200Z on 06 Jul 2002

IA. Analysis of Solar Active Regions and Activity from 05-2100Z to 06-2100Z

Solar activity was moderate. The largest flare of the past day was an M1 at 06/0342 UTC. Although no optical flare reports were received, SOHO EIT data suggests that the source was Region 17 from just behind the southwest solar limb. Region 19 (S17W21) produced a C6/1N flare at 06/0938 UTC. This sunspot group appears to have diminished slightly in complexity.
IB. Solar Activity Forecast
Solar activity is expected to be low to moderate. Region 19 remains capable of C-class activity. An isolated M-class flare in this region is also possible.
IIA. Geophysical Activity Summary 05-2100Z to 06-2100Z
The geomagnetic field was unsettled to active. ACE satellite data confirms that a high-speed coronal hole stream is responsible for the activity.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be unsettled to active as the coronal hole disturbance continues.
III. Event Probabilities 07 Jul to 09 Jul
Class M40%30%30%
Class X01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       06 Jul 134
  Predicted   07 Jul-09 Jul  132/132/130
  90 Day Mean        06 Jul 169
V. Geomagnetic A Indices
  Observed Afr/Ap 05 Jul  009/013
  Estimated     Afr/Ap 06 Jul  016/020
  Predicted    Afr/Ap 07 Jul-09 Jul  015/015-015/010-010/010
VI. Geomagnetic Activity Probabilities 07 Jul to 09 Jul
A. Middle Latitudes
Active50%50%30%
Minor storm10%10%10%
Major-severe storm01%01%01%
B. High Latitudes
Active60%60%40%
Minor storm15%15%15%
Major-severe storm01%01%01%

All times in UTC

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