Viewing archive of Monday, 1 June 2009
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 2009 Jun 01 2201 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 152 Issued at 2200Z on 01 Jun 2009IA. Analysis of Solar Active Regions and Activity from 31-2100Z to 01-2100Z Solar activity was very low. Region 1019 (N28E29)
developed into a Cro beta group with 13 spots and produced a B1
x-ray flare at 01/0807Z.
IB. Solar Activity Forecast
Solar activity is expected to be very
low, with a slight chance for a C-class flare from Region 1019.
IIA. Geophysical Activity Summary 31-2100Z to 01-2100Z
The geomagnetic field was quiet.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet on 2 June. Quiet to unsettled levels, with
isolated active conditions at high latitudes, are expected on 3-4
June due to a recurrent coronal hole.
III. Event Probabilities 02 Jun to 04 Jun
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observed 01 Jun 073 Predicted 02 Jun-04 Jun 075/075/075 90 Day Mean 01 Jun 069
V. Geomagnetic A Indices
Observed Afr/Ap 31 May 003/003 Estimated Afr/Ap 01 Jun 003/005 Predicted Afr/Ap 02 Jun-04 Jun 005/005-007/008-007/008
VI. Geomagnetic Activity Probabilities 02 Jun to 04 Jun
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 05% | 15% | 15% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 10% | 20% | 20% |
| Minor storm | 01% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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