Viewing archive of Sunday, 29 August 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 Aug 29 2201 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 241 Issued at 2200Z on 29 Aug 2010IA. Analysis of Solar Active Regions and Activity from 28-2100Z to 29-2100Z Solar activity has been at very low levels for the past
24 hours. Region 1101 (N12E07) remains quiet and stable. New Region
1102 (N27W13) was numbered today and emerged on the disk as a C-type
sunspot group with a beta magnetic classification.
IB. Solar Activity Forecast
Solar activity is expected to be at
very low levels for the next three days (30 August - 01 September).
IIA. Geophysical Activity Summary 28-2100Z to 29-2100Z
The geomagnetic field has been at quiet levels for the past 24 hours.
ACE solar wind readings indicated velocities gradually decreasing
from 580 to 450 km/s during the period. This decrease in velocity
was associated with the waning effects of the latest coronal hole
high speed stream. The greater than 2 MeV electron flux at
geosynchronous orbit was at high levels throughout the period.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be at quiet levels for the next three days (30 August -
01 September).
III. Event Probabilities 30 Aug to 01 Sep
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observed 29 Aug 074 Predicted 30 Aug-01 Sep 074/075/076 90 Day Mean 29 Aug 077
V. Geomagnetic A Indices
Observed Afr/Ap 28 Aug 005/007 Estimated Afr/Ap 29 Aug 002/005 Predicted Afr/Ap 30 Aug-01 Sep 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 30 Aug to 01 Sep
| 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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