Viewing archive of Wednesday, 4 February 2009

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 2009 Feb 04 2201 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 035 Issued at 2200Z on 04 Feb 2009

IA. Analysis of Solar Active Regions and Activity from 03-2100Z to 04-2100Z

Solar activity was very low. The solar disk remains spotless and there were no flares observed during the past 24 hours.
IB. Solar Activity Forecast
Solar activity is expected to be very low.
IIA. Geophysical Activity Summary 03-2100Z to 04-2100Z
The geomagnetic field was at quiet to minor storm conditions. The disturbance in the solar wind continued from yesterday. Observations from the ACE spacecraft reflect a possible CME signature associated with this disturbance.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be quiet to unsettled conditions for 05 February. Predominately quiet levels are expected for 06-07 February.
III. Event Probabilities 05 Feb to 07 Feb
Class M01%01%01%
Class X01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       04 Feb 070
  Predicted   05 Feb-07 Feb  070/070/070
  90 Day Mean        04 Feb 069
V. Geomagnetic A Indices
  Observed Afr/Ap 03 Feb  002/004
  Estimated     Afr/Ap 04 Feb  010/015
  Predicted    Afr/Ap 05 Feb-07 Feb  006/008-005/005-005/005
VI. Geomagnetic Activity Probabilities 05 Feb to 07 Feb
A. Middle Latitudes
Active05%01%01%
Minor storm01%01%01%
Major-severe storm01%01%01%
B. High Latitudes
Active10%05%05%
Minor storm01%01%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-flare2024/12/25M4.9
Last geomagnetic storm2024/12/17Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
November 2024152.5 -13.9
December 2024115.2 -37.3
Last 30 days120.1 -38.2

This day in history*

Solar flares
12011M5.77
22024M4.9
32024M2.8
41998M1.83
52001M1.76
DstG
11988-85
21998-57
31978-57G2
42014-49
52002-39
*since 1994

Social networks