Vaata neljapäev, 18 mai 2000 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 2000 May 18 2200 UTCValminud NOAA © SWPC ja töödeldud SpaceWeatherLive.com-iga
Ühine USAF / NOAA päikese- ja geofüüsikaalase aktiivsuse aruanne
SDF number 139 Välja antud 2200Z kuni 18 MAY 2000IA. Päikese aktiivsete piirkondade ja päikeseaktiivsuse analüüs alates 17-2100Z kuni 18-2100Z SOLAR ACTIVITY INCREASED TO MODERATE LEVELS. REGION
9002 (N18E31) PRODUCED AN IMPULSIVE M2/2B FLARE AT 18/1557Z ALONG
WITH OCCASIONAL C-CLASS SUBFLARES. THIS REGION SHOWED LITTLE CHANGE
DURING THE PERIOD AND REMAINED A LARGE REGION WITH A MIXED-POLARITY
STRUCTURE. REGION 8998 (S13E04), A MODERATE-SIZED MIXED-POLARITY
GROUP, PRODUCED ISOLATED C-CLASS SUBFLARES AND SHOWED GRADUAL
DEVELOPMENT. REGION 8996 (S21W09) REMAINED THE LARGEST GROUP ON THE
DISK WITH AN AREA EXCEEDING 1200 MILLIONTHS AND RETAINED A
MIXED-POLARITY STRUCTURE. IT PRODUCED OCCASIONAL C-CLASS SUBFLARES.
NEW REGIONS 9009 (S15E68) AND 9010 (N16E74) WERE NUMBERED TODAY.
IB. Päikese aktiivsuse ennustus
ACTIVITY IS EXPECTED TO REMAIN AT
MODERATE LEVELS. ISOLATED M-CLASS FLARES ARE LIKELY. THERE IS ALSO A
SLIGHT CHANCE FOR A MAJOR FLARE SOMETIME DURING THE PERIOD.
IIA. Summaarne geofüüsikaline aktiivsus 17-2100Z kuni 18-2100Z
GEOMAGNETIC FIELD ACTIVITY WAS AT QUIET TO UNSETTLED LEVELS.
IIB. Geofüüsikalise aktiivsuse ennustus
GEOMAGNETIC FIELD ACTIVITY IS
EXPECTED TO REMAIN AT QUIET TO UNSETTLED LEVELS DURING THE FIRST
DAY. ACTIVITY IS EXPECTED TO INCREASE DURING THE LAST TWO DAYS OF
THE PERIOD WITH UNSETTLED TO ACTIVE PERIODS POSSIBLE DUE TO CORONAL
HOLE EFFECTS.
III. Sündmuste tõenäosus 19 MAYkuni 21 MAY
| Klass M | 80% | 80% | 80% |
| Klass X | 15% | 15% | 15% |
| Prooton | 10% | 10% | 10% |
| PCAF | GREEN | ||
IV. Pikklaine 10.7 cm kiirgus
Vaadeldud 18 MAY 253 Prognoositud 19 MAY-21 MAY 260/265/265 90 päeva keskmine 18 MAY 193
V. Geomagneetiline A-indeks
OBSERVED AFR/AP 17 MAY 020/022 ESTIMATED AFR/AP 18 MAY 010/010 PREDICTED AFR/AP 19 MAY-21 MAY 012/012-015/015-015/015
VI. Geomagnetilised aktiivsuse tõenäosused 19 MAY kuni 21 MAY
| A. Keskmistel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 25% | 30% | 30% |
| Väike torm | 10% | 15% | 15% |
| Suur-tõsine torm | 01% | 01% | 01% |
| B. Kõrgetel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 30% | 35% | 35% |
| Väike torm | 15% | 20% | 20% |
| Suur-tõsine torm | 01% | 01% | 01% |
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