Viewing archive of Thursday, 20 July 2006

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 2006 Jul 20 2203 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 201 Issued at 2200Z on 20 Jul 2006

IA. Analysis of Solar Active Regions and Activity from 19-2100Z to 20-2100Z

Solar activity was at very low levels. Region 900 (S04W38) continues to steadily decay. A partial halo CME was first seen in LASCO imagery at 20/1354Z. EIT imagery showed a large filament eruption and post-eruption loops in the southeastern quadrant of the solar disk that began near 20/1236Z. No new regions were numbered today.
IB. Solar Activity Forecast
Solar activity is expected to remain at very low levels.
IIA. Geophysical Activity Summary 19-2100Z to 20-2100Z
The geomagnetic field was at quiet levels.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet levels. Due to the slow estimated velocity of today's CME, the potential associated effects most likely will occur just outside the forecast window.
III. Event Probabilities 21 Jul to 23 Jul
Class M01%01%01%
Class X01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       20 Jul 072
  Predicted   21 Jul-23 Jul  070/070/070
  90 Day Mean        20 Jul 080
V. Geomagnetic A Indices
  Observed Afr/Ap 19 Jul  002/002
  Estimated     Afr/Ap 20 Jul  002/003
  Predicted    Afr/Ap 21 Jul-23 Jul  003/005-003/005-003/005
VI. Geomagnetic Activity Probabilities 21 Jul to 23 Jul
A. Middle Latitudes
Active10%10%10%
Minor storm01%01%01%
Major-severe storm01%01%01%
B. High Latitudes
Active15%15%15%
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-flare2024/12/23M8.9
Last geomagnetic storm2024/12/17Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
November 2024152.5 -13.9
December 2024106.6 -45.9
Last 30 days116.1 -41.8

This day in history*

Solar flares
12024M8.9
22015M6.75
31998M3.34
42013M2.36
52013M1.97
DstG
12002-67
22000-62G2
31989-60
42014-57
51982-53G1
*since 1994

Social networks