Viewing archive of söndag, 28 oktober 2012
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 2012 Oct 28 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 302 publicerat klockan 2200Z på 28 Oct 2012IA. Analys av solfläcksgrupper och solaktivitet från 27-2100Z till 28-2100Z Solar activity was low. The only C class event, a long
duration C1 flare was observed at 28/0805Z. An active region around
the west limb appears to have been the source of the event and LASCO
C2/C3 indicate an associated CME occurred. Analysis of the CME via
LASCO and STEREO indicate that the transient should not affect
Earth. However, further analysis of the CME noted in the forecast
yesterday has determined that there were two separate events, both
from filament eruptions, and both with Earthward trajectories. A
new, but unnumbered region, is beginning to rotate around the
Southeast limb of the disk. All regions currently on the disk were
unchanged or in decay.
IB. Prognos för solaktivitet
Solar activity is expected to be low
for days one through three (29-31 October).
IIA. Sammanfattning av geofysisk aktivitet 27-2100Z till 28-2100Z
The geomagnetic field was quiet. The greater than 2 MeV electron flux
at geosynchronous orbit reached high levels during the period.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is
expected to be quiet on days one and two (29-30 October). Quiet
conditions are expected again on day three (31 October) until the
possible arrival of the CMEs from 27/28 October late in the period,
when an active period is expected at CME onset.
III. Chans för solutbrott från 29 Oct till 31 Oct
| M-klass | 15% | 15% | 15% |
| X-klass | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observerad 28 Oct 117 Prognoserat 29 Oct-31 Oct 115/115/110 90 Day Mean 28 Oct 121
V. Geomagnetiskt A-index
Observerad Afr/Ap 27 Oct 003/004 Förväntat Afr/Ap 28 Oct 003/004 Prognoserat Afr/Ap 29 Oct-31 Oct 006/005-006/005-010/012
VI. Chanser för geomagnetisk aktivitet från 29 Oct till 31 Oct
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 05% | 05% | 25% |
| Små stormförhållanden | 01% | 01% | 10% |
| Svåra stormförhållanden | 01% | 01% | 01% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 15% | 15% | 10% |
| Små stormförhållanden | 10% | 10% | 20% |
| Svåra stormförhållanden | 05% | 05% | 35% |
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