Viewing archive of Friday, 9 February 2007

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 2007 Feb 09 2203 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 040 Issued at 2200Z on 09 Feb 2007

IA. Analysis of Solar Active Regions and Activity from 08-2100Z to 09-2100Z

Solar activity increased to low levels. Old Region 940 (S05,L=043) produced a C1 x-ray flare at 08/2246Z. LASCO imagery observed a CME shortly after the event which appeared to have a western trajectory and is most likely not Earth directed. Region 941 (S07W75) was stable and underwent little change during the period.
IB. Solar Activity Forecast
Solar activity is expected to be at very low levels.
IIA. Geophysical Activity Summary 08-2100Z to 09-2100Z
The geomagnetic field was at quiet to unsettled levels. The greater than 2 MeV electron flux at geosynchronous orbit reached high levels again today.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be quiet to unsettled on 10 February. Late on 11 February, a recurrent coronal hole high speed stream is expected to become geoeffective with periods of active to minor storm levels possible. Predominantly unsettled to active conditions are expected on 12 February due to the coronal hole.
III. Event Probabilities 10 Feb to 12 Feb
Class M01%01%01%
Class X01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       09 Feb 077
  Predicted   10 Feb-12 Feb  077/076/074
  90 Day Mean        09 Feb 084
V. Geomagnetic A Indices
  Observed Afr/Ap 08 Feb  006/007
  Estimated     Afr/Ap 09 Feb  005/005
  Predicted    Afr/Ap 10 Feb-12 Feb  005/005-012/015-012/020
VI. Geomagnetic Activity Probabilities 10 Feb to 12 Feb
A. Middle Latitudes
Active15%25%25%
Minor storm01%10%10%
Major-severe storm01%05%05%
B. High Latitudes
Active15%30%40%
Minor storm05%15%20%
Major-severe storm01%10%15%

<< 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!

23%
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2024/03/23X1.1
Last M-flare2024/03/28M6.1
Last geomagnetic storm2024/03/25Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
February 2024124.7 +1.7

This day in history*

Solar flares
12024M7.0
22001M6.17
32024M6.1
42000M4.46
52022M4.0
ApG
1200144G2
2200327G2
3199721G2
4201727G1
5200421G1
*since 1994

Social networks