Viewing archive of Sunday, 10 February 2013

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 2013 Feb 10 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 41 Issued at 2200Z on 10 Feb 2013

IA. Analysis of Solar Active Regions and Activity from 09-2100Z to 10-2100Z

Solar activity has been at very low levels for the past 24 hours. There are currently 3 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be at low levels on days one, two, and three (11 Feb, 12 Feb, 13 Feb).
IIA. Geophysical Activity Summary 09-2100Z to 10-2100Z
The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed, as measured by the ACE spacecraft, reached a peak speed of 425 km/s at 09/2223Z. Total IMF reached 7 nT at 10/0048Z. The maximum southward component of Bz reached -5.3 nT at 10/0414Z.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet to unsettled levels for the next three days (11 Feb, 12 Feb, 13 Feb).
III. Event Probabilities 11 Feb to 13 Feb
Class M10%10%10%
Class X01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       10 Feb 106
  Predicted   11 Feb-13 Feb 105/105/100
  90 Day Mean        10 Feb 119

V. Geomagnetic A Indices
  Observed Afr/Ap 09 Feb  003/002
  Estimated     Afr/Ap 10 Feb  004/004
  Predicted    Afr/Ap 11 Feb-13 Feb  005/005-008/008-005/005

VI. Geomagnetic Activity Probabilities 11 Feb to 13 Feb
A. Middle Latitudes
Active10%10%10%
Minor storm01%05%01%
Major-severe storm01%01%01%
B. High Latitudes
Active15%15%15%
Minor storm15%20%15%
Major-severe storm10%20%10%

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!

63%
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2024/05/15X2.9
Last M-flare2024/05/24M1.4
Last geomagnetic storm2024/05/17Kp6 (G2)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
April 2024136.5 +31.6
May 2024148.8 +12.3
Last 30 days142.7 +6.6

This day in history*

Solar flares
12003M2.81
21999M1.71
32003M1.47
42023M1.3
52005M1.23
ApG
11967146G5
2195252G4
3199047G3
4196678G3
5195142G3
*since 1994

Social networks