Vaata reede, 22 oktoober 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 Oct 22 2200 UTCValminud NOAA © SWPC ja töödeldud SpaceWeatherLive.com-iga
Ühine USAF / NOAA päikese- ja geofüüsikaalase aktiivsuse aruanne
: : : : : : : CORRECTED COPY : : : : : : : SDF number 295 Välja antud 2200Z kuni 22 OCT 1999IA. Päikese aktiivsete piirkondade ja päikeseaktiivsuse analüüs alates 21-2100Z kuni 22-2100Z SOLAR ACTIVITY WAS LOW. THE LARGEST EVENT OF THE PERIOD
WAS A C4/SF IN REGION 8732 (N20W89) AT 22/0915Z. TWO TYPE II'S
OCCURRED AT 22/0853Z AND 22/1300Z, LIKELY DUE TO THE CME ACTIVITY IN
THE CLUSTER OF REGIONS TRANSITING THE NORTHWEST LIMB. REGIONS 8737
(S15W26) AND 8739 (S13E43) BOTH EXHIBITED GROWTH THIS PERIOD WITH
REGION 8739 PRODUCING A 1F/SF AT 22/1929Z. NEW REGIONS 8740 (N27W83)
AND 8741 (S25E64) WERE NUMBERED TODAY.
IB. Päikese aktiivsuse ennustus
SOLAR ACTIVITY IS EXPECTED TO BE LOW
TO MODERATE. AN ISOLATED M-CLASS EVENT IS STILL POSSIBLE FROM
REGIONS 8731 (N12W79) AND REGION 8732, AS THEY ROTATE AROUND THE WEST
LIMB. C-CLASS ACTIVITY IS LIKELY FROM REGIONS 8737 AND 8739.
IIA. Summaarne geofüüsikaline aktiivsus 21-2100Z kuni 22-2100Z
THE GEOMAGNETIC FIELD WAS AT ACTIVE TO SEVERE STORM LEVELS. THIS
STORM WAS ASSOCIATED WITH THE SUDDEN IMPULSE (SI) OBSERVED AT
21/0226Z. A SUSTAINED PERIOD OF RELATIVE CALM FOLLOWED THE SI, BUT
CONDITIONS CHANGED CONSIDERABLY AROUND 21/2240Z. A DRAMATIC CHANGE
IN THE IMF BZ TO A STRONG SOUTHWARD ORIENTATION PRODUCED SEVERE
CONDITIONS AT MID AND HIGH LATITUDES. THE DISTURBANCE BEGAN TO WANE
SOON AFTER 22/1200Z. ACTIVE CONDITIONS HAVE PERSISTED SINCE.
IIB. Geofüüsikalise aktiivsuse ennustus
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE AT ACTIVE TO MINOR STORM LEVELS WITH ISOLATED MAJOR
STORM PERIODS LIKELY AT HIGH LATITUDES. A FAVORABLY POSITIONED
GEOEFFECTIVE CORONAL HOLE SHOULD RESULT IN UNSETTLED TO ACTIVE
CONDITIONS THROUGH ALL THREE DAYS.
III. Sündmuste tõenäosus 23 OCTkuni 25 OCT
| Klass M | 40% | 35% | 30% |
| Klass X | 10% | 05% | 05% |
| Prooton | 10% | 05% | 05% |
| PCAF | GREEN | ||
IV. Pikklaine 10.7 cm kiirgus
Vaadeldud 22 OCT 160 Prognoositud 23 OCT-25 OCT 155/145/140 90 päeva keskmine 22 OCT 158
V. Geomagneetiline A-indeks
OBSERVED AFR/AP 21 OCT 014/015 ESTIMATED AFR/AP 22 OCT 055/090 PREDICTED AFR/AP 23 OCT-25 OCT 025/040-020/030-020/020
VI. Geomagnetilised aktiivsuse tõenäosused 23 OCT kuni 25 OCT
| A. Keskmistel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 30% | 30% | 30% |
| Väike torm | 40% | 40% | 30% |
| Suur-tõsine torm | 10% | 10% | 05% |
| B. Kõrgetel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 30% | 40% | 40% |
| Väike torm | 50% | 40% | 40% |
| Suur-tõsine torm | 20% | 20% | 10% |
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