Viewing archive of måndag, 26 november 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 Nov 26 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 331 publicerat klockan 2200Z på 26 Nov 2012IA. Analys av solfläcksgrupper och solaktivitet från 25-2100Z till 26-2100Z Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C2 event observed at
26/1526Z from Region 1620 (S13W28). The region grew significantly
overnight and is now considered an Esi-type region with a beta-gamma
magnetic configuration. Region 1618 (N08W69) continued to decay,
however, it maintained a weak delta in its trailing spot. There are
currently 4 numbered sunspot regions on the disk. A filament eruption
was observed south of Region 1620 in SDO/AIA 304 imagery beginning at
26/0343Z. A model run is in progress to determine geoeffectiveness.
IB. Prognos för solaktivitet
Solar activity is expected to be at low to
moderate levels on days one, two, and three (27 Nov, 28 Nov, 29 Nov).
IIA. Sammanfattning av geofysisk aktivitet 25-2100Z till 26-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. A
shock passage was observed at 26/0437Z indicating the possible early
arrival of the 23 November CME followed by an 8 nT Sudden Impulse (SI)
observed at the Boulder magnetometer at 26/0514Z. Solar wind speed, as
measured by the ACE spacecraft, reached a peak speed of 558 km/s at
26/0709Z. Total IMF reached 12.8 nT at 26/0749Z. The maximum southward
component of Bz reached -7.8 nT at 26/0729Z although it has remained
positive since about 26/1000Z.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is expected
to be at quiet to unsettled levels with a chance for isolated active
periods on day one (27 Nov) as CME effects begin to wane. Mostly quiet
conditions are expected on days two and three (28 Nov, 29 Nov).
III. Chans för solutbrott från 27 Nov till 29 Nov
| M-klass | 35% | 35% | 35% |
| X-klass | 05% | 05% | 05% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observerad 26 Nov 122 Prognoserat 27 Nov-29 Nov 120/120/115 90 Day Mean 26 Nov 123
V. Geomagnetiskt A-index
Observerad Afr/Ap 25 Nov 004/004 Förväntat Afr/Ap 26 Nov 005/005 Prognoserat Afr/Ap 27 Nov-29 Nov 011/012-006/005-006/005
VI. Chanser för geomagnetisk aktivitet från 27 Nov till 29 Nov
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 25% | 10% | 05% |
| Små stormförhållanden | 10% | 05% | 01% |
| Svåra stormförhållanden | 01% | 01% | 01% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 15% | 15% | 15% |
| Små stormförhållanden | 25% | 15% | 10% |
| Svåra stormförhållanden | 35% | 15% | 05% |
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Rymdvädersfakta
| Senaste X-utbrottet | 2024/05/06 | X4.4 |
| Senaste M-utbrottet | 2024/05/06 | M1.5 |
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| Fläckfria dagar | |
|---|---|
| Senaste dag utan solfläckar | 2022/06/08 |
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