Het archief bekijken van woensdag 30 december 1998
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 1998 Dec 30 2200 UTC
Opgemaakt door de NOAA © SWPC en verwerkt door Poollicht.beUSAF/NOAA rapport van de zonneactiviteit en geofysische activiteit
SDF Nummer 364 gepubliceerd omstreeks 2200Z op 30 DEC 1998
IA. Analyse van de actieve zonneregio's en zonneactiviteit van 29-2100Z tot 30-2100Z
SOLAR ACTIVITY WAS MODERATE. REGION 8421 (N26W14)
PRODUCED ALL OF TODAY'S FLARES, INCLUDING THE ONLY M-CLASS EVENT: AN
M1/SF AT 0546Z. THE GROUP SHOWED SLOW GROWTH TODAY, PRIMARILY BY
MEANS OF CONSOLIDATION OF THE LEADER PART OF THE GROUP INTO A
SINGLE, LARGE PENUMBRAL REGION. THE REGION PRODUCED FREQUENT
SUBFLARES THROUGHOUT THE DAY, 7 OF WHICH WERE LOW-LEVEL C-CLASS
EVENTS. IT WOULD APPEAR THAT THE STORAGE OF NON-POTENTIAL MAGNETIC
ENERGY IN THE REGION IS PROMPTLY DISSIPATED BY THESE FREQUENT SMALL
EVENTS. REGION 8419 (N26W65) DECREASED SLOWLY TODAY AND WAS VERY
STABLE. NEW REGION 8425 (S26E50) WAS ASSIGNED TODAY AND IS A SIMPLE,
SMALL, BIPOLAR SUNSPOT GROUP.
IB. Voorspelling zonneactiviteit
SOLAR ACTIVITY IS EXPECTED TO BE
MODERATE. REGION 8421 IS EXPECTED TO BE THE SOURCE FOR ANY M-CLASS
ACTIVITY OVER THE NEXT THREE DAYS. THERE CONTINUES TO BE A CHANCE
FOR AN ISOLATED MAJOR FLARE EVENT FROM THIS REGION.
IIA. Samenvatting geofysische activiteit 29-2100Z tot 30-2100Z
THE GEOMAGNETIC FIELD WAS MOSTLY QUIET TO UNSETTLED. THE FIRST THREE
HOURS OF THE REPORTING PERIOD BEGAN WITH MOSTLY UNSETTLED CONDITIONS
WITH A FEW HIGH LATITUDE STATIONS REPORTING ACTIVE CONDITIONS.
CONDITIONS CALMED SLIGHTLY BETWEEN 0000-0700Z WITH ACTIVITY ON THE
BORDERLINE BETWEEN QUIET AND UNSETTLED. SINCE 0700Z, HOWEVER, THE
FIELD HAS BEEN VERY QUIET AT ALL LATITUDES. AN EXAMINATION OF THE
INTERPLANETARY MAGNETIC FIELD COMPONENT BZ SHOWED A NORTHWARD
TURNING OF THE FIELD TO ABOUT +5 NT AT 0500Z.
IIB. Voorspelling geofysische activiteit
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE UNSETTLED TOMORROW IN RESPONSE TO EFFECTS FROM A
FAVORABLY POSITIONED CORONAL HOLE. UNSETTLED CONDITIONS MAY LINGER
INTO THE EARLY PART OF THE SECOND DAY, BUT QUIET CONDITIONS SHOULD
PREVAIL FOR MOST OF THE SECOND AND THIRD DAYS.
III. Kans zonnevlammen van 31 DEC tot 02 JAN
Klasse M | 65% | 65% | 65% |
Klasse X | 15% | 15% | 15% |
Proton | 15% | 20% | 20% |
PCAF | GREEN
|
IV. Penticton 10.7 cm Flux
Geobserveerd 30 DEC 179
Voorspeld 31 DEC-02 JAN 172/165/160
90 dagen gemiddelde 30 DEC 136
V. Geomagnetische A index
OBSERVED AFR/AP 29 DEC 010/016
ESTIMATED AFR/AP 30 DEC 004/010
PREDICTED AFR/AP 31 DEC-02 JAN 010/010-007/010-005/007
VI. Kansen op geomagnetische activiteit van 31 DEC tot 02 JAN
A. Gemiddelde breedtegraad |
Actief | 15% | 15% | 10% |
Kleine storm | 05% | 05% | 05% |
Zware-ernstige stormcondities | 01% | 01% | 01% |
B. Hoge breedtegraad |
Actief | 15% | 15% | 10% |
Kleine storm | 10% | 10% | 05% |
Zware-ernstige stormcondities | 05% | 05% | 01% |
Alle tijden in UTC
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