Viewing archive of Wednesday, 1 August 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 Aug 01 2203 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 213 Issued at 2200Z on 01 Aug 2007

IA. Analysis of Solar Active Regions and Activity from 31-2100Z to 01-2100Z

Solar activity was very low.
IB. Solar Activity Forecast
Solar activity is expected to be very low.
IIA. Geophysical Activity Summary 31-2100Z to 01-2100Z
The geomagnetic field ranged from quiet to unsettled with two active periods. Minor storming was observed at mid-latitudes due to a recurrent coronal hole high speed stream. Solar wind speed remains above 600 km/s. The greater than 2 MeV electron flux at geosynchronous orbit reached high levels today.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be quiet to unsettled for 02 August. There remains a chance for isolated active periods. The geomagnetic field is expected to abate to quiet for 03 - 04 August.
III. Event Probabilities 02 Aug to 04 Aug
Class M01%01%01%
Class X01%01%01%
Proton01%01%01%
PCAFGreen
IV. Penticton 10.7 cm Flux
  Observed       01 Aug 068
  Predicted   02 Aug-04 Aug  070/070/070
  90 Day Mean        01 Aug 073
V. Geomagnetic A Indices
  Observed Afr/Ap 31 Jul  004/006
  Estimated     Afr/Ap 01 Aug  014/015
  Predicted    Afr/Ap 02 Aug-04 Aug  008/008-005/005-004/005
VI. Geomagnetic Activity Probabilities 02 Aug to 04 Aug
A. Middle Latitudes
Active25%15%15%
Minor storm10%05%05%
Major-severe storm01%01%01%
B. High Latitudes
Active30%20%20%
Minor storm15%10%10%
Major-severe storm05%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!

76%
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-flare2024/06/13M3.1
Last geomagnetic storm2024/06/07Kp6 (G2)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
May 2024171.7 +35.2
June 2024165.1 -6.6
Last 30 days151.4 -26

This day in history*

Solar flares
12015M2.97
22012M2.75
32003M2.2
42014M2.07
52011M1.99
ApG
1199079G4
2194762G3
3193961G3
4194040G2
5201621G2
*since 1994

Social networks