Viewing archive of Friday, 8 June 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 Jun 08 2203 UTC
Prepared by the NOAA © SWPC and processed by

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 159 Issued at 2200Z on 08 Jun 2007

IA. Analysis of Solar Active Regions and Activity from 07-2100Z to 08-2100Z

Solar activity continued low. Region 960 (S08W17), the most prominent of the spotted regions visible, continues to simplify and decay. It has produced frequent small C-class activity through the interval. The other two spotted regions have been quiet.
IB. Solar Activity Forecast
Solar activity is expected to be low. Region 960 retains the potential for an isolated M-class flare.
IIA. Geophysical Activity Summary 07-2100Z to 08-2100Z
The geomagnetic field has been quiet. The GOES greater than 2 MeV electron flux was at high levels once again.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to persist at quiet conditions through the forecast period.
III. Event Probabilities 09 Jun to 11 Jun
Class M30%30%30%
Class X05%05%05%
IV. Penticton 10.7 cm Flux
  Observed       08 Jun 084
  Predicted   09 Jun-11 Jun  080/080/080
  90 Day Mean        08 Jun 074
V. Geomagnetic A Indices
  Observed Afr/Ap 07 Jun  001/003
  Estimated     Afr/Ap 08 Jun  005/008
  Predicted    Afr/Ap 09 Jun-11 Jun  005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 09 Jun to 11 Jun
A. Middle Latitudes
Minor storm10%10%10%
Major-severe storm01%01%01%
B. High Latitudes
Minor storm15%15%15%
Major-severe storm05%05%05%

All times in UTC

<< Go to daily overview page


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!

Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2024/06/10X1.55
Last M-flare2024/07/11M1.21
Last geomagnetic storm2024/06/28Kp8- (G4)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
June 2024164.2 -7.5
July 2024150.2 -14
Last 30 days152.1 +0.5

This day in history*

Solar flares
*since 1994

Social networks