Het archief bekijken van dinsdag 9 augustus 2011
Activiteitenrapport
Bij elke genoemde zonnevlam in dit rapport werd een schaalfactor toegepast door het Space Weather Prediction Center (SWPC). Vanwege de SWPC-schaalfactor worden zonnevlammen 42% kleiner gerapporteerd dan voor de wetenschappelijke data. De schaalfactor werd verwijderd uit onze gearchiveerde zonnevlamdata om de werkelijke fysieke eenheden weer te geven.
Rapport van de zonne- en geofysische activiteit van 2011 Aug 09 2200 UTC
Opgemaakt door de NOAA © SWPC en verwerkt door Poollicht.beUSAF/NOAA rapport van de zonneactiviteit en geofysische activiteit
SDF Nummer 221 gepubliceerd omstreeks 2200Z op 09 Aug 2011
IA. Analyse van de actieve zonneregio's en zonneactiviteit van 08-2100Z tot 09-2100Z
Solar activity was high. Region 1263 (N17W83) produced
an X6/2b flare at 09/0805Z, the largest x-ray event so far in Cycle
24. This flare was accompanied by multi-frequency radio emissions,
including a Tenflare (710sfu), and Type II (1551 km/s) and IV
signatures. A full halo CME was subsequently observed in LASCO C3
imagery at 09/0906Z. Initial plane-of-sky speed was estimated to be
about 1000 km/s. Earlier in the period, a CME was observed in LASCO
C3 imagery at 0406Z. This event was attributed to an M2/1b flare
from Region 1263 at 09/03435Z. While the area of Region 1263
diminished over the last 24 hours, the longitudinal extent expanded,
and the region ended the period as an Ehc type spot group with a
beta-gamma-delta magnetic configuration.
IB. Voorspelling zonneactiviteit
Solar activity is likely to be low to
moderate. A slight chance for an isolated X-class flare, and/or
proton event, remains for Day 1 (10 August). Event probabilities are
expected to gradually decrease as Region 1263 rotates around the
west limb.
IIA. Samenvatting geofysische activiteit 08-2100Z tot 09-2100Z
The geomagnetic field was quiet to unsettled through the period under
the continued influence of a coronal hole high speed stream. Solar
wind speed at the ACE spacecraft was approximately 600 km/s for most
of the period. The Bz component of the interplanetary magnetic
field was predominantly near zero. The greater than 100 MeV protons
crossed the 1 pfu event threshold at 09/0825Z, reached a maximum of
2 pfu at 09/0855Z, and ended at 09/1045Z. The greater than 10 MeV
protons crossed the 10 pfu event threshold at 09/0845Z, reached a
maximum of 26 pfu at 09/1210Z, and ended at 09/1715Z. The greater
than 2 MeV electron flux at geosynchronous orbit reached high levels
during the period.
IIB. Voorspelling geofysische activiteit
The geomagnetic field is
expected to be predominantly quiet to unsettled for the next three
days (10-12 August). Unsettled conditions are expected on Day 1 (10
August) as a weak remnant of the 08 August CME arrives. Currently,
a return to mostly quiet conditions is expected on Days 2 and 3
(11-12 August). Analysis of the 09/0906Z CME is presently underway
to determine its potential geoeffectiveness.
III. Kans zonnevlammen van 10 Aug tot 12 Aug
Klasse M | 60% | 40% | 20% |
Klasse X | 10% | 10% | 05% |
Proton | 99% | 60% | 10% |
PCAF | Yellow
|
IV. Penticton 10.7 cm Flux
Geobserveerd 09 Aug 098
Voorspeld 10 Aug-12 Aug 095/085/085
90 dagen gemiddelde 09 Aug 096
V. Geomagnetische A index
Geobserveerd Afr/Ap 08 Aug 008/010
Geraamd Afr/Ap 09 Aug 008/008
Voorspeld Afr/Ap 10 Aug-12 Aug 010/010-007/007-005/005
VI. Kansen op geomagnetische activiteit van 10 Aug tot 12 Aug
A. Gemiddelde breedtegraad |
Actief | 20% | 15% | 05% |
Kleine storm | 05% | 05% | 05% |
Zware-ernstige stormcondities | 01% | 01% | 01% |
B. Hoge breedtegraad |
Actief | 15% | 20% | 10% |
Kleine storm | 10% | 05% | 05% |
Zware-ernstige stormcondities | 05% | 05% | 01% |
Alle tijden in UTC
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