Het archief bekijken van zondag 31 oktober 2004
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 2004 Oct 31 2200 UTC
Opgemaakt door de NOAA © SWPC en verwerkt door Poollicht.beUSAF/NOAA rapport van de zonneactiviteit en geofysische activiteit
SDF Nummer 305 gepubliceerd omstreeks 2200Z op 31 Oct 2004
IA. Analyse van de actieve zonneregio's en zonneactiviteit van 30-2100Z tot 31-2100Z
Solar activity was moderate for the past 24 hours.
Region 691 (N14W40) produced two M-class flares: an M1 at 0226 UT
and an M2/Sf at 0532 UT. The M2 was accompanied by type II and type
IV radio sweeps. Newly received LASCO data for 30 October indicated
a nearly full halo CME after yesterday's M5 x-ray event: the CME is
first visible in C2 at 30/1654 UTC and has plane-of sky velocity of
about 700-800 km/s. The CME is not symmetric and most of the
material appears to be moving away from the southwest limb. Region
691 has become somewhat quieter in the last 24 hours. The leader
spots show slight decline, but the trailer spots have been growing.
Region 693 (S16E20) showed growth during the past 24 hours, with the
emergence of spots in the middle portion of the group, but the
region only managed to produce one C-class flare.
IB. Voorspelling zonneactiviteit
Solar activity is expected to be
moderate, with a slight chance for major flare activity. Region 691
is the main threat for moderate or higher activity levels, although
Region 693 might also contribute. There is also a slight chance for
a proton event from Region 691, given its favorable location on the
disk.
IIA. Samenvatting geofysische activiteit 30-2100Z tot 31-2100Z
The geomagnetic field was quiet to unsettled during the past 24
hours. The > 10 MeV proton enhancement that began yesterday reached
a maximum of 2.5 PFU at 30/2150 UTC and has been steadily declining
since then.
IIB. Voorspelling geofysische activiteit
The geomagnetic field is
expected to continue at quiet to unsettled levels until sometime
around mid-day tomorrow (01 November) when transient flow from the
energetic solar events of 30 October are expected to arrive at
Earth. Active conditions with some periods of minor storm levels are
expected to follow and persist for 24-36 hours. Conditions are
expected to subside to unsettled to active levels on the third day
(03 November).
III. Kans zonnevlammen van 01 Nov tot 03 Nov
Klasse M | 60% | 60% | 60% |
Klasse X | 15% | 15% | 15% |
Proton | 20% | 20% | 20% |
PCAF | yellow
|
IV. Penticton 10.7 cm Flux
Geobserveerd 31 Oct 139
Voorspeld 01 Nov-03 Nov 140/140/135
90 dagen gemiddelde 31 Oct 107
V. Geomagnetische A index
Geobserveerd Afr/Ap 30 Oct 010/017
Geraamd Afr/Ap 31 Oct 008/010
Voorspeld Afr/Ap 01 Nov-03 Nov 020/025-020/030-015/020
VI. Kansen op geomagnetische activiteit van 01 Nov tot 03 Nov
A. Gemiddelde breedtegraad |
Actief | 30% | 30% | 25% |
Kleine storm | 25% | 25% | 20% |
Zware-ernstige stormcondities | 15% | 15% | 10% |
B. Hoge breedtegraad |
Actief | 35% | 35% | 30% |
Kleine storm | 30% | 30% | 25% |
Zware-ernstige stormcondities | 20% | 20% | 10% |
Alle tijden in UTC
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