Het archief bekijken van maandag 18 september 2000
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 2000 Sep 18 2200 UTC
Opgemaakt door de NOAA © SWPC en verwerkt door Poollicht.beUSAF/NOAA rapport van de zonneactiviteit en geofysische activiteit
SDF Nummer 262 gepubliceerd omstreeks 2200Z op 18 SEP 2000
IA. Analyse van de actieve zonneregio's en zonneactiviteit van 17-2100Z tot 18-2100Z
SOLAR ACTIVITY WAS LOW. A NUMBER OF C-CLASS SUBFLARES
OCCURRED IN REGIONS 9165 (N14W40), 9166 (S14E24), AND 9167 (N12E57).
DECAY IN REGION 9165 HAS SLOWED AND THE AREA RETAINS SOME MAGNETIC
COMPLEXITY. REGION 9166 CONTINUES TO GROW SLOWLY AND IS PRESENTLY AN
E-TYPE SUNSPOT GROUP WITH SOME MIXED POLARITIES. NEW REGION 9169
(N08E70) IS A LARGE SUNSPOT GROUP ROTATING AROUND THE EAST LIMB, AND
IS ABUTTED TO THE SOUTHEAST OF REGION 9167. SO FAR IT HAS NOT
PRODUCED SIGNIFICANT FLARES BUT IT APPEARS TO BE A CAPABLE REGION;
HOWEVER, ITS LIMB PROXIMITY MAKES ANALYSIS DIFFICULT.
IB. Voorspelling zonneactiviteit
SOLAR ACTIVITY IS EXPECTED TO BE LOW
TO MODERATE. FLARE ACTIVITY IS EXPECTED FROM REGIONS 9165, 9166,
9167, AND 9169.
IIA. GEOPHYSICAL ACTIVITY SUMMARY 17/2100Z TO 18/2100Z:
THE GEOMAGNETIC FIELD RANGED FROM ACTIVE TO MAJOR STORM LEVELS AT
MIDDLE LATITUDES AND ACTIVE TO SEVERE STORM LEVELS AT HIGH
LATITUDES. THE MOST DISTURBED PERIOD OCCURRED FROM 17/2100 UTC TO
18/0300 UTC. THE GEOMAGNETIC FIELD APPEARS TO BE UNDER THE INFLUENCE
OF A HIGH-SPEED CORONAL HOLE STREAM, PUNCTUATED WITH THE PASSAGE OF
CME MATERIAL. THE MOST DISTURBED PERIOD WAS ASSOCIATED WITH A CME.
IIB. Voorspelling geofysische activiteit
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE AT ACTIVE TO STORM LEVELS. THE HIGH-SPEED STREAM IS
EXPECTED TO PERSIST AND ANOTHER CME IS EXPECTED TO ARRIVE EITHER
LATE ON SEP 18 OR EARLY ON SEP 19.
III. Kans zonnevlammen van 19 SEP tot 21 SEP
Klasse M | 50% | 50% | 50% |
Klasse X | 05% | 05% | 05% |
Proton | 05% | 05% | 05% |
PCAF | GREEN
|
IV. Penticton 10.7 cm Flux
Geobserveerd 18 SEP 204
Voorspeld 19 SEP-21 SEP 210/215/220
90 dagen gemiddelde 18 SEP 177
V. Geomagnetische A index
OBSERVED AFR/AP 17 SEP 032/040
ESTIMATED AFR/AP 18 SEP 035/045
PREDICTED AFR/AP 19 SEP-21 SEP 040/055-030/040-020/020
VI. Kansen op geomagnetische activiteit van 19 SEP tot 21 SEP
A. Gemiddelde breedtegraad |
Actief | 10% | 15% | 30% |
Kleine storm | 30% | 30% | 15% |
Zware-ernstige stormcondities | 60% | 50% | 35% |
B. Hoge breedtegraad |
Actief | 10% | 15% | 30% |
Kleine storm | 30% | 30% | 15% |
Zware-ernstige stormcondities | 60% | 50% | 35% |
COMMENTS
EFFECTIVE 2 OCT 2000, SEC WILL ISSUE ITS TEXT PRODUCTS IN MIXED
CASE VS. ALL UPPER CASE. THIS CHANGE WILL BE VISIBLE ON ALL SEC
PRODUCT DELIVERY SYSTEMS EXCEPT FOR TELETYPE CIRCUITS. ONLY THE
CASE OF THE TEXT IN EACH PRODUCT WILL CHANGE, NOT THE FORMAT OR
SPACING WITHIN THE PRODUCT. FOR DETAILS SEE OUR WEB SITE AT
SEC.NOAA.GOV/MIXEDCASE.HTML
Alle tijden in UTC
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