Viewing archive of Wednesday, 24 February 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 Feb 24 2201 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 055 Issued at 2200Z on 24 Feb 2010IA. Analysis of Solar Active Regions and Activity from 23-2100Z to 24-2100Z Solar activity was very low. Region 1049 (S19W91)
produced an isolated B-class flare as it rotated out of view. New
Region 1051 (N17E66), a Cso/Beta group, also produced isolated
B-class flares during the period. LASCO C2 images indicated a halo
CME, first visible at 24/0354Z, with a plane of sky velocity of
approximately 380 km/sec. The CME was determined to be a backside
event.
IB. Solar Activity Forecast
Solar activity is expected to be very
low through the period with a slight chance for a C-class flare from
Region 1051.
IIA. Geophysical Activity Summary 23-2100Z to 24-2100Z
Geomagnetic field activity was at quiet to unsettled levels.
Unsettled levels were observed during 24/0300 - 0600Z.
IIB. Geophysical Activity Forecast
Geomagnetic field activity is
expected to be at quiet levels through the period (25 - 27
February).
III. Event Probabilities 25 Feb to 27 Feb
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 24 Feb 083 Predicted 25 Feb-27 Feb 082/080/078 90 Day Mean 24 Feb 080
V. Geomagnetic A Indices
Observed Afr/Ap 23 Feb 002/002 Estimated Afr/Ap 24 Feb 003/004 Predicted Afr/Ap 25 Feb-27 Feb 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 25 Feb to 27 Feb
| 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% |
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