Viewing archive of torsdag, 19 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 19 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 110 publicerat klockan 2200Z på 19 Apr 2012IA. Analys av solfläcksgrupper och solaktivitet från 18-2100Z till 19-2100Z Solar activity was low. The largest event of the period
was a C7 x-ray flare at 19/1126Z associated with Types II and IV
radio sweeps and a non-Earth-directed CME. This event may have
originated in old Region 1455 (N05, L=206), now about two days
beyond the west limb. Regions 1460 (N16W01) and 1463 (S26W49) each
produced a low-level C-class flare. Region 1460 showed spot growth
in its intermediate portion. Region 1462 (S24W31) produced a C1
flare at 19/1515Z associated with a CME that may have had an
Earthward component. Further analysis is required to determine if
the CME is likely to be geoeffective. New Region 1464 (N23E01,
Bxo-Beta) was numbered.
IB. Prognos för solaktivitet
Solar activity is expected to be low
during days 1 - 3 (20 - 22 April) with a chance for an isolated
M-class flare.
IIA. Sammanfattning av geofysisk aktivitet 18-2100Z till 19-2100Z
The geomagnetic field was quiet.
IIB. Prognos för geofysisk aktivitet
Geomagnetic field activity is
expected to be at quiet to unsettled levels on day 1 (20 April) with
a chance for brief active levels due to a recurrent solar sector
boundary crossing. Quiet levels are expected during days 2- 3 (21 -
22 April).
III. Chans för solutbrott från 20 Apr till 22 Apr
| M-klass | 30% | 30% | 30% |
| X-klass | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observerad 19 Apr 138 Prognoserat 20 Apr-22 Apr 135/135/135 90 Day Mean 19 Apr 112
V. Geomagnetiskt A-index
Observerad Afr/Ap 18 Apr 007/008 Förväntat Afr/Ap 19 Apr 004/005 Prognoserat Afr/Ap 20 Apr-22 Apr 007/008-004/005-003/005
VI. Chanser för geomagnetisk aktivitet från 20 Apr till 22 Apr
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 25% | 10% | 10% |
| Små stormförhållanden | 05% | 01% | 01% |
| Svåra stormförhållanden | 01% | 01% | 01% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 35% | 15% | 15% |
| Små stormförhållanden | 15% | 01% | 01% |
| Svåra stormförhållanden | 01% | 01% | 01% |
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Rymdvädersfakta
| Senaste X-utbrottet | 2024/03/28 | X1.1 |
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| Fläckfria dagar | |
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