Viewing archive of Tuesday, 24 July 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 Jul 24 2203 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 205 Issued at 2200Z on 24 Jul 2007

IA. Analysis of Solar Active Regions and Activity from 23-2100Z to 24-2100Z

Solar activity was very low. The visible disk remains spotless.
IB. Solar Activity Forecast
Solar activity is expected to remain very low.
IIA. Geophysical Activity Summary 23-2100Z to 24-2100Z
The geomagnetic field was quiet.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be quiet 25 July and unsettled to active 26 July as a recurrent coronal hole becomes geoeffective. On 27 July conditions should range from quiet to unsettled.
III. Event Probabilities 25 Jul to 27 Jul
Class M01%01%01%
Class X01%01%01%
Proton01%01%01%
PCAFGreen
IV. Penticton 10.7 cm Flux
  Observed       24 Jul 068
  Predicted   25 Jul-27 Jul  068/068/068
  90 Day Mean        24 Jul 074
V. Geomagnetic A Indices
  Observed Afr/Ap 23 Jul  004/003
  Estimated     Afr/Ap 24 Jul  005/005
  Predicted    Afr/Ap 25 Jul-27 Jul  005/005-010/015-005/005
VI. Geomagnetic Activity Probabilities 25 Jul to 27 Jul
A. Middle Latitudes
Active10%30%10%
Minor storm05%15%05%
Major-severe storm01%01%01%
B. High Latitudes
Active20%35%20%
Minor storm10%15%10%
Major-severe storm05%10%05%

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