Viewing archive of Saturday, 22 May 2010
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 2010 May 22 2201 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 142 Issued at 2200Z on 22 May 2010IA. Analysis of Solar Active Regions and Activity from 21-2100Z to 22-2100Z Solar activity was very low. Region 1072 (S16E08) has
grown in both white light areal coverage and sunspot count and
remains a beta magnetic configuration. No x-ray flares were
observed during the period.
IB. Solar Activity Forecast
Solar activity is expected to be very
low.
IIA. Geophysical Activity Summary 21-2100Z to 22-2100Z
The geomagnetic field was quiet. Solar wind velocity observed from
the ACE spacecraft show speeds averaging around 370 km/s.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be at quiet levels for the next three days (23-25 May).
III. Event Probabilities 23 May to 25 May
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observed 22 May 073 Predicted 23 May-25 May 074/075/075 90 Day Mean 22 May 078
V. Geomagnetic A Indices
Observed Afr/Ap 21 May 004/005 Estimated Afr/Ap 22 May 002/005 Predicted Afr/Ap 23 May-25 May 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 23 May to 25 May
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 05% | 05% | 05% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 05% | 05% | 05% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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