Vaata laupäev, 26 veebruar 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 Feb 26 2200 UTCValminud NOAA © SWPC ja töödeldud SpaceWeatherLive.com-iga
Ühine USAF / NOAA päikese- ja geofüüsikaalase aktiivsuse aruanne
SDF number 057 Välja antud 2200Z kuni 26 FEB 2000IA. Päikese aktiivsete piirkondade ja päikeseaktiivsuse analüüs alates 25-2100Z kuni 26-2100Z SOLAR ACTIVITY REMAINED AT A LOW LEVEL. SEVERAL LOW
LEVEL C-CLASS EVENTS OCCURRED. REGION 8891 (S15E60) IS A LARGE
REGION OF OVER 700 MILLIONTHS AREA BUT EXHIBITS A BIPOLAR MAGNETIC
STRUCTURE. REGION 8882 (S16E08) SHOWED SOME MINOR MIXING OF
POLARITIES AND A WEAK DELTA CONFIGURATION MAY EXIST HERE. REGION
8889 (N20E46) IS A MODERATE SIZE E CLASS GROUP WITH A LARGE TRAILING
FILAMENT THAT WAS QUITE ACTIVE AT TIMES DURING THE PERIOD. A LONG
DURATION C2 X-RAY FLARE OCCURRED BETWEEN 26/1036-1222Z. SOHO DATA
INDICATE THIS EVENT ORIGINATED FROM BEHIND THE SOUTHWEST LIMB.
IB. Päikese aktiivsuse ennustus
SOLAR ACTIVITY SHOULD BE LOW TO
MODERATE. M-CLASS EVENTS ARE POSSIBLE FROM REGIONS 8882, 8889, AND
8891. THERE IS ALSO THE POSSIBILITY OF A LONG DURATION C OR M-CLASS
EVENT FROM REGION 8889 SHOULD THE NEARBY FILAMENT ERUPT. THERE IS A
SLIGHT CHANCE OF AN X-CLASS EVENT DURING THE PERIOD. THIS CHANCE
WOULD BECOME GREATER SHOULD REGIONS 8882 AND 8891 BEGIN TO EVOLVE
QUICKLY AND DEVELOP GREATER MAGNETIC COMPLEXITY.
IIA. Summaarne geofüüsikaline aktiivsus 25-2100Z kuni 26-2100Z
THE GEOMAGNETIC FIELD RANGED FROM QUIET TO ACTIVE LEVELS. SOLAR WIND
VELOCITY CONTINUED TO SLOWLY DECLINE BUT ENDED THE PERIOD STILL
ELEVATED NEAR 600 KM/S. ENERGETIC ELECTRON FLUXES AT GEOSYNCHRONOUS
ORBIT REACHED HIGH LEVELS FOR THE SECOND CONSECUTIVE DAY.
IIB. Geofüüsikalise aktiivsuse ennustus
THE GEOMAGNETIC FIELD SHOULD BE
PREDOMINANTLY QUIET TO UNSETTLED FOR 27 FEB. ISOLATED ACTIVE PERIODS
ARE POSSIBLE AS THIS CORONAL HOLE RELATED DISTURBANCE SUBSIDES.
MOSTLY QUIET CONDITIONS ARE EXPECTED ON 28-29 FEB. ENERGETIC
ELECTRON FLUXES SHOULD REMAIN ELEVATED FOR THE NEXT FEW DAYS.
III. Sündmuste tõenäosus 27 FEBkuni 29 FEB
| Klass M | 60% | 60% | 60% |
| Klass X | 15% | 15% | 15% |
| Prooton | 05% | 05% | 05% |
| PCAF | GREEN | ||
IV. Pikklaine 10.7 cm kiirgus
Vaadeldud 26 FEB 215 Prognoositud 27 FEB-29 FEB 217/219/220 90 päeva keskmine 26 FEB 165
V. Geomagneetiline A-indeks
OBSERVED AFR/AP 25 FEB 014/018 ESTIMATED AFR/AP 26 FEB 012/011 PREDICTED AFR/AP 27 FEB-29 FEB 012/008-008/010-008/010
VI. Geomagnetilised aktiivsuse tõenäosused 27 FEB kuni 29 FEB
| A. Keskmistel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 35% | 25% | 15% |
| Väike torm | 10% | 10% | 05% |
| Suur-tõsine torm | 05% | 01% | 01% |
| B. Kõrgetel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 40% | 25% | 15% |
| Väike torm | 10% | 10% | 05% |
| Suur-tõsine torm | 05% | 01% | 01% |
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