Het archief bekijken van zondag 18 januari 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 Jan 18 2200 UTC
Opgemaakt door de NOAA © SWPC en verwerkt door Poollicht.beUSAF/NOAA rapport van de zonneactiviteit en geofysische activiteit
SDF Nummer 018 gepubliceerd omstreeks 2200Z op 18 Jan 2004
IA. Analyse van de actieve zonneregio's en zonneactiviteit van 17-2100Z tot 18-2100Z
Solar activity was moderate. Region 540 (S14E02)
produced an M1/1n flare at 18/0017Z. Moderate to strong radio bursts
accompanied this flare including a 190 sfu Tenflare and a large
23,000 sfu burst on 245 MHz. A Type II radio sweep was also observed
with a shock speed of near 1000 km/s. This beta-gamma spot group has
not changed much over the past 48 hours, although some new growth
was noted in the trailer spots. Region 537 (N04W83) was quite active
this period as it approached the west limb. It produced occasional
C-class activity including a C3 flare and CME at 18/2003Z. Remaining
regions were stable.
IB. Voorspelling zonneactiviteit
Solar activity is expected to be low
to moderate. Moderately complex Region 540 has potential for
isolated M-class flares. Further C-class activity is expected from
Region 537 on the west limb.
IIA. Samenvatting geofysische activiteit 17-2100Z tot 18-2100Z
The geomagnetic field was quiet to active. A coronal hole high speed
stream continues with solar wind speed ranging from 520 to 620 km/s.
The IMF Bz was predominantly northward; however, periods of
southward Bz occurred inciting the occasional active periods. The
greater than 2 MeV electron flux at geosynchronous orbit reached
high levels again today.
IIB. Voorspelling geofysische activiteit
The geomagnetic field is
expected to range from quiet to minor storming over the next three
days. The high speed solar wind stream in progress now is expected
to persist through 19 January and produce occasional active periods.
The M5 flare that occurred on 17 January did produce a CME, but
LASCO imagery shows that most of the ejecta is southward directed.
Some weak impacts are expected on 20 January from this CME, but the
disturbance should be limited to occasional active periods with
isolated high latitude minor storming. Quiet to unsettled levels are
expected on 21 January with isolated active periods possible.
III. Kans zonnevlammen van 19 Jan tot 21 Jan
Klasse M | 01% | 01% | 01% |
Klasse X | 01% | 01% | 01% |
Proton | 01% | 01% | 01% |
PCAF | Green
|
IV. Penticton 10.7 cm Flux
Geobserveerd 18 Jan 120
Voorspeld 19 Jan-21 Jan 120/115/115
90 dagen gemiddelde 18 Jan 138
V. Geomagnetische A index
Geobserveerd Afr/Ap 17 Jan 009/014
Geraamd Afr/Ap 18 Jan 012/016
Voorspeld Afr/Ap 19 Jan-21 Jan 010/012-015/025-012/015
VI. Kansen op geomagnetische activiteit van 19 Jan tot 21 Jan
A. Gemiddelde breedtegraad |
Actief | 25% | 30% | 25% |
Kleine storm | 10% | 15% | 10% |
Zware-ernstige stormcondities | 05% | 05% | 05% |
B. Hoge breedtegraad |
Actief | 30% | 40% | 35% |
Kleine storm | 15% | 20% | 15% |
Zware-ernstige stormcondities | 05% | 10% | 05% |
Alle tijden in UTC
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