Viewing archive of Monday, 26 October 2009

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 2009 Oct 26 2201 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 299 Issued at 2200Z on 26 Oct 2009

IA. Analysis of Solar Active Regions and Activity from 25-2100Z to 26-2100Z

Solar activity was low. A C1 flare was observed at 26/1906Z from Region 1029 (N16W29).
IB. Solar Activity Forecast
Solar activity is expected to be low with a slight chance of an M-class flare.
IIA. Geophysical Activity Summary 25-2100Z to 26-2100Z
Geomagnetic field activity was quiet.
IIB. Geophysical Activity Forecast
Geomagnetic activity is expected to be quiet.
III. Event Probabilities 27 Oct to 29 Oct
Class M05%05%05%
Class X01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       26 Oct 081
  Predicted   27 Oct-29 Oct  075/075/075
  90 Day Mean        26 Oct 069
V. Geomagnetic A Indices
  Observed Afr/Ap 25 Oct  003/005
  Estimated     Afr/Ap 26 Oct  005/005
  Predicted    Afr/Ap 27 Oct-29 Oct  005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 27 Oct to 29 Oct
A. Middle Latitudes
Active10%05%05%
Minor storm01%01%01%
Major-severe storm00%00%00%
B. High Latitudes
Active10%05%05%
Minor storm01%01%01%
Major-severe storm00%00%00%

All times in UTC

<< Go to daily overview page

Latest news

Support SpaceWeatherLive.com!

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!

100%
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2024/11/06X2.39
Last M-flare2024/11/13M1.7
Last geomagnetic storm2024/11/10Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
October 2024166.4 +25
November 2024166 -0.4
Last 30 days163.2 +18.4

This day in history*

Solar flares
11999X1.15
21999M8.06
32005M5.58
41999M4.11
52005M3.72
DstG
11960-167G3
21998-109G2
32012-108G2
41989-105
51979-90G1
*since 1994

Social networks