Viewing archive of Tuesday, 13 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 13 2201 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 286 Issued at 2200Z on 13 Oct 2009

IA. Analysis of Solar Active Regions and Activity from 12-2100Z to 13-2100Z

Solar activity was very low. No flares were observed. The visible disk remained spotless.
IB. Solar Activity Forecast
Solar activity is expected to be very low.
IIA. Geophysical Activity Summary 12-2100Z to 13-2100Z
The geomagnetic field was quiet.
IIB. Geophysical Activity Forecast
Geomagnetic field activity is expected to be at quiet levels on day 1 (14 October). Activity is expected to increase to quiet to unsettled levels on days 2 - 3 (15 - 16 October) as an equatorward extension of the northern crown coronal hole begins to influence the field.
III. Event Probabilities 14 Oct to 16 Oct
Class M01%01%01%
Class X01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       13 Oct 070
  Predicted   14 Oct-16 Oct  070/070/072
  90 Day Mean        13 Oct 069
V. Geomagnetic A Indices
  Observed Afr/Ap 12 Oct  001/002
  Estimated     Afr/Ap 13 Oct  001/003
  Predicted    Afr/Ap 14 Oct-16 Oct  005/005-007/007-007/007
VI. Geomagnetic Activity Probabilities 14 Oct to 16 Oct
A. Middle Latitudes
Active05%10%10%
Minor storm01%01%01%
Major-severe storm01%01%01%
B. High Latitudes
Active10%15%15%
Minor storm01%01%01%
Major-severe storm01%01%01%

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!

SpaceWeatherLive Pro
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2024/12/08X2.2
Last M-flare2024/12/23M1.0
Last geomagnetic storm2024/12/17Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
November 2024152.5 -13.9
December 2024106.6 -45.9
Last 30 days116.1 -41.8

This day in history*

Solar flares
12015M6.75
21998M3.34
32013M2.36
42013M1.97
52001M1.69
DstG
12002-67
22000-62G2
31989-60
42014-57
51982-53G1
*since 1994

Social networks