Viewing archive of Monday, 24 June 2002

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 2002 Jun 24 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 175 Issued at 2200Z on 24 Jun 2002

IA. Analysis of Solar Active Regions and Activity from 23-2100Z to 24-2100Z

Solar activity was low during the past 24 hours. Today's only C-flare was a C1 at 1606 UTC. The optical source was not obvious, but there were some slightly enhanced loops visible in EIT 195 from Region 5 (N14W29). New Region 15 (S27E39) emerged and was assigned today. A 13 degree filament near N40W06 disappeared sometime between 0112 UTC and 1345 UTC. A CME erupted from the west limb at 24/0054 UTC but did not have any earthward component. Region 8 (S10W01) continues to be the largest region on the disk and appeared to be growing and developing some magnetic complexity during the past 24 hours.
IB. Solar Activity Forecast
Solar activity is expected to be low for the next three days. There is a very slight chance for moderate activity from Region 8.
IIA. Geophysical Activity Summary 23-2100Z to 24-2100Z
The geomagnetic field was quiet to unsettled.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be quiet to unsettled for the next three days.
III. Event Probabilities 25 Jun to 27 Jun
Class M25%25%25%
Class X05%05%05%
Proton05%05%05%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       24 Jun 150
  Predicted   25 Jun-27 Jun  150/150/145
  90 Day Mean        24 Jun 175
V. Geomagnetic A Indices
  Observed Afr/Ap 23 Jun  012/014
  Estimated     Afr/Ap 24 Jun  006/012
  Predicted    Afr/Ap 25 Jun-27 Jun  007/008-007/008-007/008
VI. Geomagnetic Activity Probabilities 25 Jun to 27 Jun
A. Middle Latitudes
Active20%20%20%
Minor storm05%05%05%
Major-severe storm01%01%01%
B. High Latitudes
Active25%25%25%
Minor storm05%05%05%
Major-severe storm01%01%01%
PLAIN This message is for users of the NOAA/SEC Space Weather Operations sunspot region numbers. As you may have noticed, region number 10000 was assigned on June 14. Space Weather operations is going through the sequence of Region numbers as 9998, 9999, 0000, 0001, and so on. SEC's product text discussions of the active regions will ignore the leading zeroes (for example, we will say 'Region number 5' rather than Region number '0005'). However, the Geoalert product, the Region Report product, as well as the USAF and ISES data exchange codes will preserve the 4 digit format. The necessity of using four digits is for operational purposes only. For historical purposes all regions beyond Region 9999 will be understood to be in a series of region numbers 10000 and higher.

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