Viewing archive of Saturday, 6 September 2008

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 2008 Sep 06 2201 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 250 Issued at 2200Z on 06 Sep 2008

IA. Analysis of Solar Active Regions and Activity from 05-2100Z to 06-2100Z

Solar activity was very low. No flares occurred during the past 24 hours and the solar disk continues to be spotless.
IB. Solar Activity Forecast
Solar activity is expected to be very low.
IIA. Geophysical Activity Summary 05-2100Z to 06-2100Z
The geomagnetic field was mostly quiet with some isolated unsettled to active periods. Solar wind speed as observed by ACE continued to be elevated throughout the day, with values ranging between 480 to 560 km/s. The greater than 2 MeV electron flux at geosynchronous orbit reached high levels during the last 24 hours.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be quiet to unsettled for the first day (07 September) and is expected to be predominantly quiet for the second and third days (08-09 September).
III. Event Probabilities 07 Sep to 09 Sep
Class M01%01%01%
Class X01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       06 Sep 066
  Predicted   07 Sep-09 Sep  066/066/066
  90 Day Mean        06 Sep 066
V. Geomagnetic A Indices
  Observed Afr/Ap 05 Sep  007/007
  Estimated     Afr/Ap 06 Sep  010/010
  Predicted    Afr/Ap 07 Sep-09 Sep  007/008-005/005-005/005
VI. Geomagnetic Activity Probabilities 07 Sep to 09 Sep
A. Middle Latitudes
Active30%15%10%
Minor storm05%01%01%
Major-severe storm01%01%01%
B. High Latitudes
Active35%20%05%
Minor storm15%05%01%
Major-severe storm01%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!

SpaceWeatherLive Pro
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2024/12/08X2.2
Last M-flare2024/12/24M4.1
Last geomagnetic storm2024/12/17Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
November 2024152.5 -13.9
December 2024110.7 -41.8
Last 30 days117.3 -41.4

This day in history*

Solar flares
12001M5
22024M4.7
32024M4.1
42023M2.9
52023M2.6
DstG
11995-65G1
22014-57
32001-55G1
42002-49G1
51990-47
*since 1994

Social networks