Viewing archive of Sunday, 14 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 14 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 288 Issued at 2200Z on 14 Oct 2012IA. Analysis of Solar Active Regions and Activity from 13-2100Z to 14-2100Z Solar activity was low. The largest flare of the
period, a C4 at 14/0230Z, occurred from a region just beyond the
northeast limb. New flux emergence was observed in the northeast
quadrant and was numbered Region 1592 (N23E20). An asymmetric halo
CME was observed in SOHO/LASCO C2 imagery beginning at 14/0048Z.
Correlation with STEREO B EUVI and COR2 imagery determined it was a
backside event.
IB. Solar Activity Forecast
Solar activity is expected to be low
with a chance for an isolated M-class flare during the forecast
period (15-17 October).
IIA. Geophysical Activity Summary 13-2100Z to 14-2100Z
The geomagnetic field was at quiet to minor storm levels. An
isolated minor storm period was observed during the 14/0000-0300Z
period. Solar wind speed, measured at the ACE spacecraft, declined
from approximately 590 km/s to 490 km/s while the Bz component of
the interplanetary magnetic field did not vary much beyond +/- 5 nT.
The greater than 2 MeV electron flux at geosynchronous orbit reached
high levels during the period.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be mostly unsettled with a chance for active periods on
day 1 (15 October) as effects from the coronal hole high speed
stream wane. On days 2-3 (16-17 October), quiet to unsettled
conditions are expected.
III. Event Probabilities 15 Oct to 17 Oct
| Class M | 25% | 25% | 25% |
| Class X | 05% | 05% | 05% |
| Proton | 05% | 05% | 05% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 14 Oct 132 Predicted 15 Oct-17 Oct 135/140/140 90 Day Mean 14 Oct 117
V. Geomagnetic A Indices
Observed Afr/Ap 13 Oct 028/052 Estimated Afr/Ap 14 Oct 014/018 Predicted Afr/Ap 15 Oct-17 Oct 011/012-008/008-008/008
VI. Geomagnetic Activity Probabilities 15 Oct to 17 Oct
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 30% | 10% | 10% |
| Minor storm | 10% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 30% | 20% | 20% |
| Major-severe storm | 40% | 15% | 15% |
All times in UTC
Latest news
Sunday, 8 December 2024
X2.2 solar flare, SDO outage
Thursday, 21 November 2024
Major far side eruption, S1 radiation storm
Monday, 11 November 2024
Coronal hole faces Earth
Latest forum messages
50 mhz F2 51AR 13932 13Power transmission for all of us. And why I believe we are better prepared than ever for major solar events 11Strong far side CME 335Incoming & Unnumbered Active Regions 1353
More topicsSupport SpaceWeatherLive.com!
A lot of people come to SpaceWeatherLive to follow the Sun's activity or if there is aurora to be seen, but with more traffic comes higher server costs. Consider a donation if you enjoy SpaceWeatherLive so we can keep the website online!
Space weather facts
| Last X-flare | 2024/12/08 | X2.2 |
| Last M-flare | 2024/12/22 | M1.1 |
| Last geomagnetic storm | 2024/12/17 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2024 | 152.5 -13.9 |
| December 2024 | 103.3 -49.2 |
| Last 30 days | 114 -43.9 |