Vaata laupäev, 18 oktoober 2003 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 2003 Oct 18 2200 UTCValminud NOAA © SWPC ja töödeldud SpaceWeatherLive.com-iga
Ühine USAF / NOAA päikese- ja geofüüsikaalase aktiivsuse aruanne
SDF number 291 Välja antud 2200Z kuni 18 Oct 2003IA. Päikese aktiivsete piirkondade ja päikeseaktiivsuse analüüs alates 17-2100Z kuni 18-2100Z Solar activity was low. A noticeable increase in flare
activity and background levels was observed during the past 24
hours. Most of this increase was due to newly numbered Region 484
(N05E68) which appears to be a compact D-type group with 240
millionths of area. The region produced numerous C-class flares: the
largest was a C4.9 at 1653 UTC. A partial halo CME was observed off
the southeast limb, beginning at 1554 UTC. The plane of sky velocity
was estimated to be about 700 km/s. Region 483 (S08E55) was assigned
today but so far is a small stable sunspot group. The other active
regions on the disk showed occasional brightenings but were mostly
quiet and stable.
IB. Päikese aktiivsuse ennustus
Solar activity is expected to be low
for the next three days with Region 484 as the dominant source of
activity. There is a slight chance for an isolated M-class event
during the next three days.
IIA. Summaarne geofüüsikaline aktiivsus 17-2100Z kuni 18-2100Z
The geomagnetic field ranged from unsettled to minor storm levels as
the high speed solar wind stream continues. The solar wind speed did
not show any trend today and the average velocity was around 540
km/s. The interplanetary magnetic field Z-component fluctuated
between -7 nT and + 5 nT but was weakly negative on average. The
greater than 2 MeV electron fluxes were at high levels during the
past 24 hours.
IIB. Geofüüsikalise aktiivsuse ennustus
The geomagnetic field is
expected to be unsettled to active for the next 24 hours. There
should be a gradual decline in activity sometime tomorrow and
conditions should be mostly unsettled for the second day. An
increase to mostly active with some minor storm periods is expected
on the third day as a new coronal hole rotates into favorable
position at that time. Today's CME is not expected to directly
impact Earth but might result in a glancing blow that could provide
a boost to activity on the third day.
III. Sündmuste tõenäosus 19 Octkuni 21 Oct
| Klass M | 20% | 20% | 20% |
| Klass X | 01% | 01% | 01% |
| Prooton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Pikklaine 10.7 cm kiirgus
Vaadeldud 18 Oct 109 Prognoositud 19 Oct-21 Oct 115/115/120 90 päeva keskmine 18 Oct 116
V. Geomagneetiline A-indeks
Vaadeldud Afr/Ap 17 Oct 020/031 Hinnanguline Afr/Ap 18 Oct 017/025 Prognoositud Afr/Ap 19 Oct-21 Oct 012/020-012/015-020/030
VI. Geomagnetilised aktiivsuse tõenäosused 19 Oct kuni 21 Oct
| A. Keskmistel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 30% | 30% | 30% |
| Väike torm | 25% | 25% | 40% |
| Suur-tõsine torm | 05% | 05% | 15% |
| B. Kõrgetel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 30% | 30% | 25% |
| Väike torm | 25% | 25% | 30% |
| Suur-tõsine torm | 05% | 05% | 35% |
Kõik ajad UTC-s
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