Viewing archive of Tuesday, 2 March 2004

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 2004 Mar 02 2200 UTC
Prepared by the NOAA © SWPC and processed by

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 062 Issued at 2200Z on 02 Mar 2004

IA. Analysis of Solar Active Regions and Activity from 01-2100Z to 02-2100Z

Solar activity was very low. There was only one flare during the past 24 hours, a B2 at 0659 UTC from departing Region 564 on the west limb at N15. Region 567 (S12W04) is now the largest group on the disk with area of 140 millionths, but was quiet and stable.
IB. Solar Activity Forecast
Solar activity is expected to be very low to low for the next three days (03-05 March).
IIA. Geophysical Activity Summary 01-2100Z to 02-2100Z
The geomagnetic field was unsettled to active. Solar wind data show persistence of a high speed wind stream from a favorably positioned coronal hole. There was a gradual overall decline in solar wind velocity from around 700 km/s down to about 620 km/s during the past 24 hours, suggesting the high speed stream is beginning to wane. The greater than 2 MeV electron flux reached high levels during the past 24 hours.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be mostly unsettled with occasional active periods for 03-04 March. Conditions should decline to generally unsettled by 05 March.
III. Event Probabilities 03 Mar to 05 Mar
Class M05%05%05%
Class X01%01%01%
IV. Penticton 10.7 cm Flux
  Observed       02 Mar 099
  Predicted   03 Mar-05 Mar  095/095/095
  90 Day Mean        02 Mar 111
V. Geomagnetic A Indices
  Observed Afr/Ap 01 Mar  012/018
  Estimated     Afr/Ap 02 Mar  018/018
  Predicted    Afr/Ap 03 Mar-05 Mar  012/015-012/015-010/012
VI. Geomagnetic Activity Probabilities 03 Mar to 05 Mar
A. Middle Latitudes
Minor storm25%25%20%
Major-severe storm05%05%05%
B. High Latitudes
Minor storm30%30%25%
Major-severe storm20%20%10%

All times in UTC

<< Go to daily overview page

Latest news


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!

Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2024/07/16X2
Last M-flare2024/07/24M3.6
Last geomagnetic storm2024/06/28Kp8- (G4)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
June 2024164.2 -7.5
July 2024185.7 +21.5
Last 30 days181 +30.7

This day in history*

Solar flares
*since 1994

Social networks