Viewing archive of Saturday, 1 August 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 Aug 01 2201 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 213 Issued at 2200Z on 01 Aug 2009IA. Analysis of Solar Active Regions and Activity from 31-2100Z to 01-2100Z Solar activity was very low. A very weak A-level event
was seen in GOES x-rays around 0243Z which was associated with
brightening in a spotless plage region near S26E06. The solar disk
was otherwise void of activity and continues to be without sunspots.
IB. Solar Activity Forecast
Solar activity is expected to be very
low.
IIA. Geophysical Activity Summary 31-2100Z to 01-2100Z
The geomagnetic field was quiet during the past 24 hours.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet for the next three days (2-4 August).
III. Event Probabilities 02 Aug to 04 Aug
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observed 01 Aug 068 Predicted 02 Aug-04 Aug 068/068/068 90 Day Mean 01 Aug 069
V. Geomagnetic A Indices
Observed Afr/Ap 31 Jul 004/005 Estimated Afr/Ap 01 Aug 003/007 Predicted Afr/Ap 02 Aug-04 Aug 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 02 Aug to 04 Aug
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 05% | 05% | 10% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 05% | 05% | 15% |
| Minor storm | 01% | 01% | 05% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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