Viewing archive of Tuesday, 14 July 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 Jul 14 2201 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 195 Issued at 2200Z on 14 Jul 2009

IA. Analysis of Solar Active Regions and Activity from 13-2100Z to 14-2100Z

Solar activity was very low. No flares were detected. The visible disk remains spotless.
IB. Solar Activity Forecast
Solar activity is expected to remain very low for the next three days (15-17 July).
IIA. Geophysical Activity Summary 13-2100Z to 14-2100Z
The geomagnetic field ranged from quiet to active levels during the past 24 hours. In particular, active periods were observed from 0000-0600Z due to intermittent periods of southward IMF Bz (-9 nT) accompanied by a coronal hole high-speed stream. The average speed of the high-speed stream was about 530 km/s.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to decline to quiet levels and remain quiet for the next three days (15-17 July).
III. Event Probabilities 15 Jul to 17 Jul
Class M01%01%01%
Class X01%01%01%
Proton01%01%01%
PCAFGreen
IV. Penticton 10.7 cm Flux
  Observed       14 Jul 067
  Predicted   15 Jul-17 Jul  067/067/067
  90 Day Mean        14 Jul 070
V. Geomagnetic A Indices
  Observed Afr/Ap 13 Jul  005/010
  Estimated     Afr/Ap 14 Jul  013/013
  Predicted    Afr/Ap 15 Jul-17 Jul  005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 15 Jul to 17 Jul
A. Middle Latitudes
Active05%05%05%
Minor storm01%01%01%
Major-severe storm01%01%01%
B. High Latitudes
Active05%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