Viewing archive of Monday, 29 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 29 2204 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 029 Issued at 2200Z on 29 Jan 2007

IA. Analysis of Solar Active Regions and Activity from 28-2100Z to 29-2100Z

Solar activity was low. Region 940 (S05E35) produced a C3/SF flare at 29/1656Z. Newly numbered Region 941 (S09E69) is classified as an Hsx Alpha group.
IB. Solar Activity Forecast
Solar activity is expected to be very low to low with a slight chance for an isolated M-class event from Region 940.
IIA. Geophysical Activity Summary 28-2100Z to 29-2100Z
The geomagnetic field ranged from quiet to minor storm levels. Major and severe storm conditions were observed at high latitudes. A co-rotating interaction region indicating the onset of a coronal hole high speed stream was observed at ACE starting at approximately 1000Z. Solar wind speed increased to approximately 700 km/s as the IMF increased to 20 nT and the Bz component varied between +/- 15 nT.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be unsettled to active for the next three days. Isolated minor to major storm periods are possible on 30-31 January due to the coronal hole high speed stream.
III. Event Probabilities 30 Jan to 01 Feb
Class M10%10%10%
Class X01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       29 Jan 087
  Predicted   30 Jan-01 Feb  090/090/090
  90 Day Mean        29 Jan 085
V. Geomagnetic A Indices
  Observed Afr/Ap 28 Jan  002/005
  Estimated     Afr/Ap 29 Jan  020/020
  Predicted    Afr/Ap 30 Jan-01 Feb  015/020-010/015-010/010
VI. Geomagnetic Activity Probabilities 30 Jan to 01 Feb
A. Middle Latitudes
Active30%25%25%
Minor storm15%10%10%
Major-severe storm05%01%01%
B. High Latitudes
Active30%25%20%
Minor storm20%15%10%
Major-severe storm15%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-flare2024/12/22M1.0
Last geomagnetic storm2024/12/17Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
November 2024152.5 -13.9
December 2024103.3 -49.2
Last 30 days115.4 -40.8

This day in history*

Solar flares
11999M7.71
22013M4.82
32023M3.33
42013M2.8
51999M2.61
DstG
11982-101G3
22014-71G1
32001-59
41987-59
51989-58G1
*since 1994

Social networks