Viewing archive of tisdag, 13 december 2011
Solaktivitetsrapport
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.
Rapport för sol- och geofysisk aktivitet 2011 Dec 13 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 347 publicerat klockan 2200Z på 13 Dec 2011IA. Analys av solfläcksgrupper och solaktivitet från 12-2100Z till 13-2100Z Solar activity was low. There were three, low-level
C-class flares during the past 24 hours, all from Region 1367
(S18W89). Region 1367 showed signs of new flux emerging as it was
rotating around the west limb. Region 1374 (S18E01) continues to be
the largest group on the disk (140 millionths) and shows a very
small delta configuration in the leader spot region, but was quiet
and stable. Two erupting prominences which led to coronal mass
ejections were observed: the first just entered the LASCO/C2 field
of view at 12/1848Z, slightly west of the north pole and the second
entered LASCO/C2 field of view at 13/0200Z off the southwest limb.
Neither of these CMEs are expected to be geoeffective.
IB. Prognos för solaktivitet
Solar activity is expected to be low.
IIA. Sammanfattning av geofysisk aktivitet 12-2100Z till 13-2100Z
The geomagnetic field was mostly quiet. There was an interval of
unsettled levels from 0900-1500Z at high latitudes.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is
expected to be quiet for day one (14 December). Quiet levels with a
chance for some unsettled periods are expected for day two (15
December) due to a possible brief, glancing blow from an erupting
prominence/CME that was observed on 11 December. Quiet levels are
expected to prevail for the third day (16 December).
III. Chans för solutbrott från 14 Dec till 16 Dec
| M-klass | 05% | 05% | 05% |
| X-klass | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observerad 13 Dec 133 Prognoserat 14 Dec-16 Dec 133/132/130 90 Day Mean 13 Dec 146
V. Geomagnetiskt A-index
Observerad Afr/Ap 12 Dec 004/004 Förväntat Afr/Ap 13 Dec 003/004 Prognoserat Afr/Ap 14 Dec-16 Dec 005/005-007/008-005/005
VI. Chanser för geomagnetisk aktivitet från 14 Dec till 16 Dec
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 05% | 10% | 05% |
| Små stormförhållanden | 01% | 01% | 01% |
| Svåra stormförhållanden | 01% | 01% | 01% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 15% | 15% | 15% |
| Små stormförhållanden | 10% | 15% | 10% |
| Svåra stormförhållanden | 05% | 10% | 05% |
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