Viewing archive of Monday, 22 October 2012
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 2012 Oct 22 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 296 Issued at 2200Z on 22 Oct 2012IA. Analysis of Solar Active Regions and Activity from 21-2100Z to 22-2100Z Solar activity has been high. Region 1598 (S10E60)
produced an M5/1f event at 22/1851Z. Region 1598 is the most
threatening region on the disk and appears to be a Beta magnetic
class. However, the proximity of Region 1598 to the East limb has
made the magnetic classification uncertain. Region 1596 (N07E20) is
also moderately sized and has some magnetic complexity, but only
managed to produce a small C-class event. The other regions on the
disk either remained stable or decayed.
IB. Solar Activity Forecast
Solar activity is expected to be
moderate to high with occasional M-class flares, and a slight chance
for an isolated X-class flare for the next three days (23 - 25 Oct).
IIA. Geophysical Activity Summary 21-2100Z to 22-2100Z
The geomagnetic field was quiet for the past 24 hours. Solar wind
speed, as measured at the ACE spacecraft, remained steady throughout
the day at approximately 375 km/s. The Bz component of the
interplanetary magnetic field ranged from +/-2 nT. 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 quiet for the next three days (23 - 25 Oct).
III. Event Probabilities 23 Oct to 25 Oct
| Class M | 75% | 75% | 75% |
| Class X | 20% | 20% | 20% |
| Proton | 05% | 05% | 10% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 22 Oct 156 Predicted 23 Oct-25 Oct 150/150/150 90 Day Mean 22 Oct 121
V. Geomagnetic A Indices
Observed Afr/Ap 21 Oct 002/002 Estimated Afr/Ap 22 Oct 002/003 Predicted Afr/Ap 23 Oct-25 Oct 006/005-006/005-006/005
VI. Geomagnetic Activity Probabilities 23 Oct to 25 Oct
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 05% | 05% | 05% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 15% | 15% | 15% |
| Major-severe storm | 05% | 05% | 05% |
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