Viewing archive of Sunday, 19 June 2005
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 2005 Jun 19 2210 UTC# Prepared jointly by the U.S. Dept. of Commerce, NOAA, #Space Environment Center and the U.S. Air Force. #
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 170 Issued at 2200Z on 19 Jun 2005IA. Analysis of Solar Active Regions and Activity from 18-2100Z to 19-2100Z Solar activity was low. Region 779 (S17W45) produced
two low level C-flares. The largest of these flares was a C2.1 at
19/1925 UTC.
IB. Solar Activity Forecast
Solar activity is expected to be very
low to low with a slight chance for an M-flare from Region 779.
IIA. Geophysical Activity Summary 18-2100Z to 19-2100Z
The geomagnetic field was quiet. The greater than 2 MeV electron flux
at geosynchronous orbit reached high levels today.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet to unsettled with isolated active conditions
possible on 20 June. On 21 and 22 June, quiet to unsettled
conditions are expected.
III. Event Probabilities 20 Jun to 22 Jun
| Class M | 10% | 10% | 10% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 19 Jun 087 Predicted 20 Jun-22 Jun 085/085/085 90 Day Mean 19 Jun 093
V. Geomagnetic A Indices
Observed Afr/Ap 18 Jun 005/007 Estimated Afr/Ap 19 Jun 006/010 Predicted Afr/Ap 20 Jun-22 Jun 008/015-006/012-006/005
VI. Geomagnetic Activity Probabilities 20 Jun to 22 Jun
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 15% | 15% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 35% | 30% | 15% |
| Minor storm | 15% | 10% | 05% |
| Major-severe storm | 05% | 01% | 01% |
All times in UTC
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