Viewing archive of söndag, 22 april 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 Apr 22 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 113 publicerat klockan 2200Z på 22 Apr 2012IA. Analys av solfläcksgrupper och solaktivitet från 21-2100Z till 22-2100Z Solar activity was low. Occasional low-level C-class
flares occurred. Region 1459 (S15W25 - Dki/beta) produced a single
C-class flare and showed signs of gradual decay in its intermediate
portion. Region 1465 (S18E14 - Dai/beta) produced two C-class flares
and showed spot and penumbral development as well as some polarity
mixing in its intermediate portion. New Region 1466 (N12E29 -
Cso/beta) emerged early in the period and gradually grew. No
Earth-directed CMEs were observed during the period.
IB. Prognos för solaktivitet
Solar activity is expected to be low
through the period (23 - 25 April) with a chance for an isolated
M-class flare.
IIA. Sammanfattning av geofysisk aktivitet 21-2100Z till 22-2100Z
Geomagnetic field activity was at quiet to unsettled levels with a
brief interval of active levels at high latitudes.
IIB. Prognos för geofysisk aktivitet
Geomagnetic field activity is
expected to be at quiet to unsettled levels during days 1 - 2 (23 -
24 April) with a chance for active levels due mainly to a recurrent
coronal hole high-speed stream. Weak CME-passage effects are also
possible on day 1 from the partial-halo CME observed on 19 April.
Field activity is expected to decrease to mostly quiet levels on day
3 (25 April).
III. Chans för solutbrott från 23 Apr till 25 Apr
| M-klass | 30% | 30% | 30% |
| X-klass | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observerad 22 Apr 148 Prognoserat 23 Apr-25 Apr 145/145/140 90 Day Mean 22 Apr 112
V. Geomagnetiskt A-index
Observerad Afr/Ap 21 Apr 006/008 Förväntat Afr/Ap 22 Apr 008/012 Prognoserat Afr/Ap 23 Apr-25 Apr 010/010-008/010-007/008
VI. Chanser för geomagnetisk aktivitet från 23 Apr till 25 Apr
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 25% | 25% | 15% |
| Små stormförhållanden | 05% | 05% | 01% |
| Svåra stormförhållanden | 01% | 01% | 01% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 30% | 30% | 20% |
| Små stormförhållanden | 10% | 10% | 01% |
| Svåra stormförhållanden | 01% | 01% | 01% |
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Rymdvädersfakta
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