Vaata neljapäev, 24 juuni 1999 arhiivi

Päikese aktiivsuse aruanne

Any mentioned solar flare in this report has a scaling factor applied by the Space Weather Prediction Center (SWPC). Because of the SWPC scaling factor, solar flares are reported as 42% smaller than for the science quality data. The scaling factor has been removed from our archived solar flare data to reflect the true physical units.
Päikese ja geofüüsikalise aktiivsuse aruanne 1999 Jun 24 2200 UTC
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Ühine USAF / NOAA päikese- ja geofüüsikaalase aktiivsuse aruanne

SDF number 175 Välja antud 2200Z kuni 24 JUN 1999

IA. Päikese aktiivsete piirkondade ja päikeseaktiivsuse analüüs alates 23-2100Z kuni 24-2100Z

SOLAR ACTIVITY WAS MODERATE. THE LARGEST X-RAY FLARE WAS AN OPTICALLY UNCORRELATED M1 EVENT AT 23/2316Z. THE BACKGROUND X-RAY FLUX REMAINED ABOVE C-LEVEL THRESHOLDS FOR NEARLY THE ENTIRE PERIOD WITH FREQUENT IMBEDDED C-CLASS FLARES. OVER TWENTY OPTICAL FLARES WERE REPORTED, NEARLY ALL OF THEM FROM THE EXTENSIVE CLUSTER OF GROUPS IN THE NE QUADRANT. TWO DISAPPEARING FILAMENTS WERE SEEN. THE FIRST OCCURRED AT APPROXIMATELY 24/1200Z; IT ORIGINATED NEAR REGION 8595 (N23W21) AND WAS ACCOMPANIED BY A CLASSIC HYDER TYPE FLARE AND NEARLY THREE HOURS OF ENHANCED X-RAY FLUX LEVELS. THE SECOND FILAMENT DISAPPEARED AT APPROXIMATELY 24/1830Z FROM AN AREA NEAR REGION 8598 (N23E28). IT WAS ACCOMPANIED BY OPTICAL FLARES NEAR THE FILAMENT FOOTPOINTS AND APPROXIMATELY NINETY MINUTES OF ENHANCED X-RAY FLUX. THREE NEW REGIONS WERE NUMBERED TODAY; THEY ARE REGIONS 8604 (N12W54), 8605 (S22W32), AND 8606 (N17E33).
IB. Päikese aktiivsuse ennustus
SOLAR ACTIVITY IS EXPECTED TO BE LOW TO MODERATE. CONSIDERABLE ACTIVITY AND MAGNETIC COMPLEXITY CURRENTLY SEEN IN THE NE GROUP CLUSTER INCREASES THE PROBABILITY OF STRONG FLARE ACTIVITY OVER THE NEXT SEVERAL DAYS.
IIA. Summaarne geofüüsikaline aktiivsus 23-2100Z kuni 24-2100Z
THE GEOMAGNETIC FIELD HAS BEEN MOSTLY QUIET.
IIB. Geofüüsikalise aktiivsuse ennustus
THE GEOMAGNETIC FIELD IS EXPECTED TO BE UNSETTLED TO ACTIVE WITH A CHANCE FOR MINOR STORMING THROUGHOUT THE FORECAST PERIOD. FLARE ASSOCIATED CMES, WHICH OCCURRED ON 22/1829Z AND 23/0709Z, ARE EXPECTED TO ARRIVE OVER THE FIRST TWO DAYS. TODAY'S EARLY DISAPPEARING FILAMENT SHOULD ARRIVE LATE ON THE THIRD DAY.
III. Sündmuste tõenäosus 25 JUNkuni 27 JUN
Klass M60%60%60%
Klass X05%05%05%
Prooton20%20%20%
PCAFGREEN
IV. Pikklaine 10.7 cm kiirgus
  Vaadeldud       24 JUN 185
  Prognoositud   25 JUN-27 JUN  180/185/190
  90 päeva keskmine        24 JUN 139
V. Geomagneetiline A-indeks
OBSERVED AFR/AP 23 JUN  005/006
ESTIMATED AFR/AP 24 JUN  007/006
PREDICTED AFR/AP 25 JUN-27 JUN  015/015-015/015-015/015
VI. Geomagnetilised aktiivsuse tõenäosused 25 JUN kuni 27 JUN
A. Keskmistel laiuskraadidel
Aktiivne35%35%40%
Väike torm15%15%20%
Suur-tõsine torm01%01%05%
B. Kõrgetel laiuskraadidel
Aktiivne40%40%50%
Väike torm20%20%25%
Suur-tõsine torm01%01%10%

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