Viewing archive of Saturday, 27 January 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 Jan 27 2204 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 027 Issued at 2200Z on 27 Jan 2007

IA. Analysis of Solar Active Regions and Activity from 26-2100Z to 27-2100Z

Solar activity was very low. Region 940 (S06E62) produced a B1 flare at 27/0124Z. This region remains an alpha sunspot group.
IB. Solar Activity Forecast
Solar activity is expected to be very low to low.
IIA. Geophysical Activity Summary 26-2100Z to 27-2100Z
The geomagnetic field was quiet. The greater than 2 MeV electron flux at geosynchronous orbit reached high levels today.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be unsettled to active for the next three days. Isolated minor storm periods are possible on 29-30 January due to a recurrent coronal hole high speed stream.
III. Event Probabilities 28 Jan to 30 Jan
Class M05%05%05%
Class X01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       27 Jan 081
  Predicted   28 Jan-30 Jan  085/085/090
  90 Day Mean        27 Jan 084
V. Geomagnetic A Indices
  Observed Afr/Ap 26 Jan  003/002
  Estimated     Afr/Ap 27 Jan  005/008
  Predicted    Afr/Ap 28 Jan-30 Jan  008/010-012/020-015/020
VI. Geomagnetic Activity Probabilities 28 Jan to 30 Jan
A. Middle Latitudes
Active20%25%30%
Minor storm10%15%15%
Major-severe storm01%05%05%
B. High Latitudes
Active25%30%30%
Minor storm10%20%20%
Major-severe storm01%10%10%

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!

76%
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2024/06/10X1.55
Last M-flare2024/06/13M3.1
Last geomagnetic storm2024/06/07Kp6 (G2)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
May 2024171.7 +35.2
June 2024161.9 -9.8
Last 30 days150.5 -26.9

This day in history*

Solar flares
12015M2.97
22012M2.75
32003M2.2
42014M2.07
52011M1.99
ApG
1199079G4
2194762G3
3193961G3
4194040G2
5201621G2
*since 1994

Social networks