Viewing archive of Friday, 3 January 2003

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 2003 Jan 03 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 003 Issued at 2200Z on 03 Jan 2003

IA. Analysis of Solar Active Regions and Activity from 02-2100Z to 03-2100Z

Solar activity was at low levels. Several low level C-class flares occurred today. The largest optically correlated event was a C2.0/Sf flare that occurred at 03/1445 UTC from Region 234 (N19W60) as region underwent steady decay today. Region 242 (S08E48) produced several B and C-class flares while showing areal growth of spot complex through the period. An eruptive prominence on the west limb (N22W90) occurred at 03/1506 UTC producing a CME seen on NASA/LASCO imagery that does not appear to be earth directed. Regions 243 (S19W34), 244 (S15E58), and 245 (N12E74) were newly assigned today.
IB. Solar Activity Forecast
Solar activity is expected to be at low levels. A very slight chance of an isolated low level M-class flare is possible from Region 242.
IIA. Geophysical Activity Summary 02-2100Z to 03-2100Z
The geomagnetic field was predominantly quiet to unsettled. Isolated active to minor storm conditions were observed between 03/1500 to 1800 UTC due to the effects of a favorably positioned coronal hole. The greater than 2 MeV electron flux at geosynchronous orbit reached high levels during the past 24 hours.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be at predominantly unsettled to active levels on day one of the forecast period due to high speed stream coronal hole. Days two and three should see a return to quiet to unsettled conditions as the geo-effective coronal hole wanes.
III. Event Probabilities 04 Jan to 06 Jan
Class M20%20%20%
Class X01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       03 Jan 138
  Predicted   04 Jan-06 Jan  135/140/145
  90 Day Mean        03 Jan 164
V. Geomagnetic A Indices
  Observed Afr/Ap 02 Jan  005/008
  Estimated     Afr/Ap 03 Jan  010/015
  Predicted    Afr/Ap 04 Jan-06 Jan  012/015-010/015-005/010
VI. Geomagnetic Activity Probabilities 04 Jan to 06 Jan
A. Middle Latitudes
Active25%25%15%
Minor storm10%05%01%
Major-severe storm01%01%01%
B. High Latitudes
Active30%30%25%
Minor storm10%10%05%
Major-severe storm01%01%01%

All times in UTC

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