Viewing archive of Sunday, 12 September 2010

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 2010 Sep 12 2201 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 255 Issued at 2200Z on 12 Sep 2010

IA. Analysis of Solar Active Regions and Activity from 11-2100Z to 12-2100Z

Solar activity was very low. New Region 1107 (N33E62) rotated onto the disk as a simple, unipolar group. Region 1106 (S19E57) was quiet and stable.
IB. Solar Activity Forecast
Solar activity is expected to be very low with a slight chance of C-class activity.
IIA. Geophysical Activity Summary 11-2100Z to 12-2100Z
The geomagnetic field was quiet.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be mostly quiet for the next three days (13 - 15 September).
III. Event Probabilities 13 Sep to 15 Sep
Class M01%01%01%
Class X01%01%01%
Proton01%01%01%
PCAFGreen
IV. Penticton 10.7 cm Flux
  Observed       12 Sep 078
  Predicted   13 Sep-15 Sep  080/080/080
  90 Day Mean        12 Sep 078
V. Geomagnetic A Indices
  Observed Afr/Ap 11 Sep  001/001
  Estimated     Afr/Ap 12 Sep  002/005
  Predicted    Afr/Ap 13 Sep-15 Sep  005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 13 Sep to 15 Sep
A. Middle Latitudes
Active10%10%15%
Minor storm01%01%01%
Major-severe storm01%01%01%
B. High Latitudes
Active15%10%20%
Minor storm01%01%01%
Major-severe storm01%01%01%

<< 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!

54%
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2024/03/28X1.1
Last M-flare2024/04/27M3.0
Last geomagnetic storm2024/04/26Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
March 2024104.9 -19.8
Last 30 days139.7 +33.3

This day in history*

Solar flares
12001M1.01
22024C8.3
32024C7.7
42000C7.46
52023C7.1
ApG
11937128G4
2196960G3
3196084G3
4195664G3
5198561G3
*since 1994

Social networks