Vaata teisipäev, 23 november 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 Nov 23 2200 UTCValminud NOAA © SWPC ja töödeldud SpaceWeatherLive.com-iga
Ühine USAF / NOAA päikese- ja geofüüsikaalase aktiivsuse aruanne
SDF number 327 Välja antud 2200Z kuni 23 NOV 1999IA. Päikese aktiivsete piirkondade ja päikeseaktiivsuse analüüs alates 22-2100Z kuni 23-2100Z SOLAR ACTIVITY REMAINED AT LOW LEVELS. REGION 8771
(S14W26) PRODUCED NUMEROUS SUBFLARES DURING THE PERIOD INCLUDING A
FEW THAT REACHED C-CLASS. THIS REGION APPEARED TO STABILIZE AS A
LARGE E-TYPE SPOT GROUP WITH COMPACT SUNSPOT DISTRIBUTION AND A
MIXED-POLARITY MAGNETIC STRUCTURE. REGION 8765 (S12W85) REMAINED A
LARGE, MAGNETICALLY COMPLEX GROUP, BUT WAS STABLE AS IT BEGAN TO
CROSS THE WEST LIMB. THE REMAINING REGIONS WERE STABLE. NO NEW
REGIONS WERE ASSIGNED.
IB. Päikese aktiivsuse ennustus
SOLAR ACTIVITY IS EXPECTED TO BE LOW
TO MODERATE. ISOLATED M-CLASS FLARES ARE POSSIBLE FROM REGION 8771
AND REGION 8765 (AS IT ROTATES OUT OF VIEW). THERE IS ALSO A SLIGHT
CHANCE FOR A MAJOR FLARE FROM EITHER OF THESE REGIONS.
IIA. Summaarne geofüüsikaline aktiivsus 22-2100Z kuni 23-2100Z
GEOMAGNETIC FIELD ACTIVITY RANGED FROM QUIET TO ACTIVE LEVELS. ACTIVE
LEVELS OCCURRED DURING 23/0500 - 0900Z FOLLOWING A PERIOD OF
PERSISTENT SOUTHWARD IMF BZ. ACTIVITY DECLINED TO UNSETTLED LEVELS
AFTER 23/0900Z.
IIB. Geofüüsikalise aktiivsuse ennustus
GEOMAGNETIC FIELD ACTIVITY IS
EXPECTED TO BE AT MOSTLY QUIET TO UNSETTLED LEVELS THROUGH THE
PERIOD. THERE IS A SLIGHT CHANCE FOR A PROTON EVENT AT
GEOSYNCHRONOUS ORBIT, SHOULD A MAJOR FLARE OCCUR FROM REGIONS 8765
OR 8771.
III. Sündmuste tõenäosus 24 NOVkuni 26 NOV
| Klass M | 70% | 60% | 60% |
| Klass X | 10% | 10% | 10% |
| Prooton | 10% | 10% | 10% |
| PCAF | YELLOW | ||
IV. Pikklaine 10.7 cm kiirgus
Vaadeldud 23 NOV 186 Prognoositud 24 NOV-26 NOV 175/170/155 90 päeva keskmine 23 NOV 167
V. Geomagneetiline A-indeks
OBSERVED AFR/AP 22 NOV 008/010 ESTIMATED AFR/AP 23 NOV 014/014 PREDICTED AFR/AP 24 NOV-26 NOV 012/015-010/010-007/010
VI. Geomagnetilised aktiivsuse tõenäosused 24 NOV kuni 26 NOV
| A. Keskmistel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 25% | 20% | 15% |
| Väike torm | 10% | 05% | 05% |
| Suur-tõsine torm | 01% | 01% | 01% |
| B. Kõrgetel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 30% | 25% | 20% |
| Väike torm | 15% | 10% | 10% |
| Suur-tõsine torm | 01% | 01% | 01% |
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