Viewing archive of Thursday, 3 September 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 Sep 03 2201 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 246 Issued at 2200Z on 03 Sep 2009IA. Analysis of Solar Active Regions and Activity from 02-2100Z to 03-2100Z Solar activity was very low. No flares were observed
during the past 24 hours. The visible disk remained spotless. A slow
CME off the west limb was first visible on SOHO C2 imagery at
03/0254Z.
IB. Solar Activity Forecast
Solar activity is expected to be very
low.
IIA. Geophysical Activity Summary 02-2100Z to 03-2100Z
The geomagnetic field was quiet during the past 24 hours.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet, with isolated periods of unsettled levels, on
day 1 (04 September). Predominantly quiet levels are expected on
days 2 and 3 (05-06 September).
III. Event Probabilities 04 Sep to 06 Sep
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 03 Sep 069 Predicted 04 Sep-06 Sep 069/069/069 90 Day Mean 03 Sep 068
V. Geomagnetic A Indices
Observed Afr/Ap 02 Sep 002/003 Estimated Afr/Ap 03 Sep 005/010 Predicted Afr/Ap 04 Sep-06 Sep 008/008-005/005-005/005
VI. Geomagnetic Activity Probabilities 04 Sep to 06 Sep
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 05% | 05% | 05% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 05% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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