Viewing archive of Monday, 29 October 2001

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 2001 Oct 29 2200 UTC
Prepared by the NOAA © SWPC and processed by

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 302 Issued at 2200Z on 29 Oct 2001

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

Solar activity has been moderate to high. Several M-class events occurred during the period. Region 9682 (N12E18) produced the largest of these with an M3/1f at 29/1113 UTC. The event had an associated Type II radio sweep with a speed of 609 km/s. This region has grown in both area and sunspot count since yesterday and retains its beta-gamma-delta magnetic configuration.
IB. Solar Activity Forecast
Solar activity is expected to be low to moderate. There is also a possibility of a major flare from Region 9682.
IIA. Geophysical Activity Summary 28-2100Z to 29-2100Z
The geomagnetic field has been unsettled to active.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be quiet to unsettled.
III. Event Probabilities 30 Oct to 01 Nov
Class M80%80%80%
Class X35%35%35%
IV. Penticton 10.7 cm Flux
  Observed       29 Oct 216
  Predicted   30 Oct-01 Nov  210/205/200
  90 Day Mean        29 Oct 201
V. Geomagnetic A Indices
  Observed Afr/Ap 28 Oct  034/041
  Estimated     Afr/Ap 29 Oct  015/015
  Predicted    Afr/Ap 30 Oct-01 Nov  010/010-008/010-008/010
VI. Geomagnetic Activity Probabilities 30 Oct to 01 Nov
A. Middle Latitudes
Minor storm05%05%05%
Major-severe storm01%01%01%
B. High Latitudes
Minor storm10%10%10%
Major-severe storm01%01%01%

All times in UTC

<< Go to daily overview page


A lot of people come to SpaceWeatherLive to follow the Sun's activity or if there is aurora to be seen, but with more traffic comes higher server costs. Consider a donation if you enjoy SpaceWeatherLive so we can keep the website online!

Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2024/05/29X1.4
Last M-flare2024/05/29M5.6
Last geomagnetic storm2024/05/17Kp6 (G2)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
April 2024136.5 +31.6
May 2024147.3 +10.8
Last 30 days147.3 +9.1

This day in history*

Solar flares
*since 1994

Social networks