Viewing archive of Monday, 3 June 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 Jun 03 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 154 Issued at 2200Z on 03 Jun 2002

IA. Analysis of Solar Active Regions and Activity from 02-2100Z to 03-2100Z

Solar activity was low. Several weak, impulsive C-class events were scattered throughout the period. Region 9973 (S16W03) is still relatively large in spot count and areal coverage, but appears to be losing some magnetic complexity and has been mostly quiescent through the period. Region 9978 (S20E21) has increased somewhat in size and spot count, and along with Region 9979 (S28E36), is trending toward greater magnetic complexity. Most other active regions on the visible disk remain little changed. New Region 9984 (N19E13) was numbered today.
IB. Solar Activity Forecast
Solar activity is expected to be low to moderate for the forecast period.
IIA. Geophysical Activity Summary 02-2100Z to 03-2100Z
The geomagnetic field has been mostly quiet to unsettled, with an isolated high-latitude active period observed during 02/2100-2400 UTC.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be mainly unsettled, with some active and isolated minor storm periods possible for the first day of the forecast period. Thereafter, conditions are expected to be mostly quiet to unsettled.
III. Event Probabilities 04 Jun to 06 Jun
Class M50%50%50%
Class X05%05%05%
Proton01%05%05%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       03 Jun 170
  Predicted   04 Jun-06 Jun  170/165/165
  90 Day Mean        03 Jun 182
V. Geomagnetic A Indices
  Observed Afr/Ap 02 Jun  014/016
  Estimated     Afr/Ap 03 Jun  011/014
  Predicted    Afr/Ap 04 Jun-06 Jun  020/020-012/012-008/008
VI. Geomagnetic Activity Probabilities 04 Jun to 06 Jun
A. Middle Latitudes
Active35%25%15%
Minor storm10%05%01%
Major-severe storm05%01%01%
B. High Latitudes
Active35%25%15%
Minor storm15%05%05%
Major-severe storm05%01%01%

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