Vaata teisipäev, 24 aprill 2012 arhiivi
Päikese aktiivsuse aruanne
Igale käesolevas aruandes mainitud päikesepurskele on kohaldatud Kosmose Ilmaennustuskeskuse (SWPC) skaalafaktor. SWPC skaleerimisteguri tõttu on päikesepursked esitatud 42% väiksemana kui samade teadusliku kvaliteediga andmete puhul. Meie arhiveeritud päikesepursete andmetest on skaleerimisstegur eemaldatud, et kajastada tegelikke füüsikalisi ühikuid.
Päikese ja geofüüsikalise aktiivsuse aruanne 2012 Apr 24 2200 UTCValminud NOAA © SWPC ja töödeldud SpaceWeatherLive.com-iga
Ühine USAF / NOAA päikese- ja geofüüsikaalase aktiivsuse aruanne
SDF number 115 Välja antud 2200Z kuni 24 Apr 2012IA. Päikese aktiivsete piirkondade ja päikeseaktiivsuse analüüs alates 23-2100Z kuni 24-2100Z Solar activity has been at low levels for the past 24
hours with multiple C-class x-ray events. A C3 flare was observed at
24/0745Z off the east limb from new Region 1467 (N14E72). Associated
with this event, were both a type II radio sweep (estimated shock
velocity of 1029 km/s) and a non-Earth directed CME. Two other new
regions were numbered today, Region 1468 (N09E12) which rapidly
emerged on the disk and Region 1469 (S21E68), which rotated onto the
disk. The remaining active regions were stable and quiet today,
except for Region 1465 (S19W12). Region 1465 showed a consolidation
of both leader and follower spot groups into one cluster and is now
classified as a beta-gamma-delta.
IB. Päikese aktiivsuse ennustus
Solar activity is expected to be at
low levels with a slight chance for M-class activity for the next
three days (25 - 27 April).
IIA. Summaarne geofüüsikaline aktiivsus 23-2100Z kuni 24-2100Z
The geomagnetic field ranged from quiet to major storm levels during
the past 24 hours due to continued CME effects and the arrival of a
coronal hole high speed stream (CH HSS). Early in the period,
measurements from the ACE spacecraft showed extensive southward
(negative) periods of the Bz component of the IMF. Even though solar
wind speeds remained well below nominal levels, these periods drove
the majority of the geomagnetic activity. Around 24/0200Z, CH HSS
characteristics were observed by the ACE spacecraft with solar wind
density dropping off as the solar wind speed increased. At the time
of this report, solar wind speeds had increased from around 350 km/s
to around 630 km/s.
IIB. Geofüüsikalise aktiivsuse ennustus
The geomagnetic field is
expected to be at quiet to active levels on day one (25 April) as
the effects of a CH HSS continue. An increase to active with a
chance for isolated minor storm periods is expected on day two (26
April) as the CME from 23 April is expected to become geoeffective.
Quiet to unsettled levels are expected on day three (27 April) as
effects of the CME wane.
III. Sündmuste tõenäosus 25 Aprkuni 27 Apr
| Klass M | 20% | 20% | 20% |
| Klass X | 01% | 01% | 01% |
| Prooton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Pikklaine 10.7 cm kiirgus
Vaadeldud 24 Apr 134 Prognoositud 25 Apr-27 Apr 130/130/125 90 päeva keskmine 24 Apr 112
V. Geomagneetiline A-indeks
Vaadeldud Afr/Ap 23 Apr 021/030 Hinnanguline Afr/Ap 24 Apr 021/031 Prognoositud Afr/Ap 25 Apr-27 Apr 012/018-017/022-011/015
VI. Geomagnetilised aktiivsuse tõenäosused 25 Apr kuni 27 Apr
| A. Keskmistel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 25% | 40% | 25% |
| Väike torm | 10% | 20% | 10% |
| Suur-tõsine torm | 01% | 05% | 01% |
| B. Kõrgetel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 45% | 50% | 40% |
| Väike torm | 25% | 30% | 25% |
| Suur-tõsine torm | 15% | 15% | 10% |
Kõik ajad UTC-s
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