Viewing archive of fredag, 27 februari 2009
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 2009 Feb 27 2201 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 058 publicerat klockan 2200Z på 27 Feb 2009IA. Analys av solfläcksgrupper och solaktivitet från 26-2100Z till 27-2100Z Solar activity was very low. Unspotted Region 1013
(N26W19) produced an A3 x-ray event at 27/0714Z with a subsequent
slow moving, asymmetric CME first observed in LASCO C2 imagery
lifting off the NW limb at 27/0906Z. A 9 degree filament located at
S38W46 was observed to have lifted off the disk between 26/2358Z to
27/1423Z.
IB. Prognos för solaktivitet
Solar activity is expected to remain
very low.
IIA. Sammanfattning av geofysisk aktivitet 26-2100Z till 27-2100Z
The geomagnetic field was predominately quiet to unsettled with an
isolated active period observed at middle latitudes at 27/1200Z.
This activity was most likely produced by a low-latitude extension
of the southern polar coronal hole. During the summary period,
solar winds speed gradually increased from about 400 km/s to near
650 km/s by 27/1200Z and maintained that velocity through the end of
the period. During the elevated portion of the high speed flow, the
Bz component of the IMF did not vary much beyond +/- 5 nT.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is
expected to be predominately quiet for the next three days (28
February - 02 March). The CME mentioned earlier is not expected to
be geoeffective.
III. Chans för solutbrott från 28 Feb till 02 Mar
| M-klass | 01% | 01% | 01% |
| X-klass | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observerad 27 Feb 069 Prognoserat 28 Feb-02 Mar 070/070/070 90 Day Mean 27 Feb 069
V. Geomagnetiskt A-index
Observerad Afr/Ap 26 Feb 002/002 Förväntat Afr/Ap 27 Feb 008/010 Prognoserat Afr/Ap 28 Feb-02 Mar 005/005-005/005-005/005
VI. Chanser för geomagnetisk aktivitet från 28 Feb till 02 Mar
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 05% | 05% | 05% |
| Små stormförhållanden | 01% | 01% | 01% |
| Svåra stormförhållanden | 01% | 01% | 01% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 10% | 10% | 10% |
| Små stormförhållanden | 01% | 01% | 01% |
| Svåra stormförhållanden | 01% | 01% | 01% |
All times in UTC
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