Viewing archive of Wednesday, 21 March 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 Mar 21 2203 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 080 Issued at 2200Z on 21 Mar 2007

IA. Analysis of Solar Active Regions and Activity from 20-2100Z to 21-2100Z

Solar activity was very low. No flares were observed during the past 24 hours, and no new regions were numbered today.
IB. Solar Activity Forecast
Solar activity is expected to be very low.
IIA. Geophysical Activity Summary 20-2100Z to 21-2100Z
The geomagnetic field was quiet. The greater than 2 MeV electron flux at geosynchronous orbit remained at high levels today.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be quiet to unsettled for the next three days (22-24 March). Isolated active periods are possible on 23-24 March, with a slight chance for minor storm conditions at high latitudes, due to a coronal hole high speed stream.
III. Event Probabilities 22 Mar to 24 Mar
Class M01%01%01%
Class X01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       21 Mar 073
  Predicted   22 Mar-24 Mar  075/075/075
  90 Day Mean        21 Mar 078
V. Geomagnetic A Indices
  Observed Afr/Ap 20 Mar  001/002
  Estimated     Afr/Ap 21 Mar  003/005
  Predicted    Afr/Ap 22 Mar-24 Mar  005/005-008/008-008/008
VI. Geomagnetic Activity Probabilities 22 Mar to 24 Mar
A. Middle Latitudes
Active15%20%20%
Minor storm05%05%05%
Major-severe storm01%01%01%
B. High Latitudes
Active15%25%25%
Minor storm05%10%10%
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-flare2024/12/23M1.0
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
12015M6.75
21998M3.34
32013M2.36
42013M1.97
52001M1.69
DstG
12002-67
22000-62G2
31989-60
42014-57
51982-53G1
*since 1994

Social networks