Viewing archive of Monday, 4 January 2010

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 2010 Jan 04 2201 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 004 Issued at 2200Z on 04 Jan 2010

IA. Analysis of Solar Active Regions and Activity from 03-2100Z to 04-2100Z

Solar activity was low. Region 1039 (S28W72) produced one C-class flare during the forecast period. This region remains a D-type sunspot group with a beta magnetic classification.
IB. Solar Activity Forecast
Solar activity is expected to be very low to low. There is a likely chance of a C-class flare from Region 1039.
IIA. Geophysical Activity Summary 03-2100Z to 04-2100Z
The geomagnetic field was quiet.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be quiet for the next three days (05 - 07 January).
III. Event Probabilities 05 Jan to 07 Jan
Class M05%05%05%
Class X01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       04 Jan 073
  Predicted   05 Jan-07 Jan  080/080/080
  90 Day Mean        04 Jan 075
V. Geomagnetic A Indices
  Observed Afr/Ap 03 Jan  003/003
  Estimated     Afr/Ap 04 Jan  005/005
  Predicted    Afr/Ap 05 Jan-07 Jan  005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 05 Jan to 07 Jan
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

Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future

Gillam, MB, Yellowknife, NT

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!

Donate SpaceWeatherLive Pro
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

02:09 UTC - Solar flare

Moderate M1.54 flare from sunspot region 4048

alert


01:42 UTC - Radio Blackout

Minor R1 radio blackout in progress (≥M1 - current: M1.24)


Saturday, 29 March 2025
23:21 UTC - Solar flare

Moderate M1.91 flare from sunspot region 4048

alert


22:51 UTC - Radio Blackout

Minor R1 radio blackout in progress (≥M1 - current: M1.1)


21:57 UTC - Solar flare

Moderate M1.45 flare from sunspot region 4048

alert


Get instant alerts!

Space weather facts

Last X-flare2025/03/28X1.1
Last M-flare2025/03/30M1.5
Last geomagnetic storm2025/03/27Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
February 2025154.6 +17.6
March 2025127.5 -27.1
Last 30 days127.5 -24.7

This day in history*

Solar flares
12022X1.38
22024M9.4
32024M9.3
42023M5.41
52000M4.97
DstG
11990-187G4
21957-107G2
31979-104G1
41989-103G3
51988-88G2
*since 1994

Social networks