Viewing archive of Tuesday, 29 October 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 Oct 29 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 302 Issued at 2200Z on 29 Oct 2002

IA. Analysis of Solar Active Regions and Activity from 28-2100Z to 29-2100Z

Solar activity was moderate during the past 24 hours due to an M1/Sf at 0320 UTC from Region 162 (N25W72). The group produced additional subflares throughout the day including a C9/Sf at 1633 UTC. The penumbral area that contained the delta configuration yesterday appears to be breaking up today. Region 173 (S18W82), which emerged yesterday, continued to develop and produced numerous subflares during the latter half of the day. New Region 175 (N15E57) was assigned today and produced a C8/Sf at 1530 UTC. New regions 174 (S25E55) and 176 (N13E75) were also assigned today.
IB. Solar Activity Forecast
Solar activity is expected to be moderate. There continues to be a slight chance for major flare activity from Region 162.
IIA. Geophysical Activity Summary 28-2100Z to 29-2100Z
The geomagnetic field was predominantly quiet to unsettled during the past 24 hours. There was an isolated active period from 0900-1200 UTC. The high speed coronal hole solar wind stream showed signs of decline throughout the day and nominal solar wind plasma parameters were observed by forecast issue time. The greater than 2 MeV electron fluxes reached high levels during the past 24 hours.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be mostly unsettled during the next three days.
III. Event Probabilities 30 Oct to 01 Nov
Class M55%55%55%
Class X05%05%05%
Proton05%05%05%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       29 Oct 162
  Predicted   30 Oct-01 Nov  160/160/165
  90 Day Mean        29 Oct 176
V. Geomagnetic A Indices
  Observed Afr/Ap 28 Oct  010/017
  Estimated     Afr/Ap 29 Oct  012/012
  Predicted    Afr/Ap 30 Oct-01 Nov  012/012-010/012-010/012
VI. Geomagnetic Activity Probabilities 30 Oct to 01 Nov
A. Middle Latitudes
Active30%25%25%
Minor storm20%15%15%
Major-severe storm10%05%05%
B. High Latitudes
Active30%25%25%
Minor storm20%15%15%
Major-severe storm10%05%05%

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