Vaata reede, 27 august 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 Aug 27 2200 UTCValminud NOAA © SWPC ja töödeldud SpaceWeatherLive.com-iga
Ühine USAF / NOAA päikese- ja geofüüsikaalase aktiivsuse aruanne
SDF number 239 Välja antud 2200Z kuni 27 AUG 1999IA. Päikese aktiivsete piirkondade ja päikeseaktiivsuse analüüs alates 26-2100Z kuni 27-2100Z SOLAR ACTIVITY WAS HIGH. REGION 8674 (S24W16) PRODUCED
AN M5/2N FLARE AT 1307Z. THIS REGION ALSO HAD AN M3/2N AT 1635Z, AND
WAS THE LIKELY SITE OF THE M3 EVENT EARLIER AT 0137Z. THE CENTER OF
THE DISK IS DOMINATED BY THE MERGING OF REGIONS 8674 AND 8673
(S19W24), AND THE TWO ARE NOW NEARLY INDISTINGUISHABLE. ALTHOUGH THE
X-RAY OUTPUT OF TODAY'S EVENTS WAS SUBSTANTIAL, THE RADIO EMISSION
WAS SMALL, AND NO SWEEP FREQUENCY EVENTS WERE DETECTED. ONE NEW
REGION WAS NUMBERED, REGION 8680 (N22W87).
IB. Päikese aktiivsuse ennustus
SOLAR ACTIVITY IS EXPECTED TO BE
MODERATE TO HIGH. REGIONS 8673 AND 8674 ARE LARGE, MAGNETICALLY
COMPLEX, AND DYNAMIC. WATCH FOR ADDITIONAL M-CLASS, AND ISOLATED
X-CLASS, ACTIVITY DURING THE NEXT THREE DAYS.
IIA. Summaarne geofüüsikaline aktiivsus 26-2100Z kuni 27-2100Z
THE GEOMAGNETIC FIELD WAS QUIET TO MILDLY ACTIVE. SOLAR WIND SPEEDS
IN EXCESS OF 600 KM/S ARE STILL OCCURRING, LIKELY ORIGINATING FROM A
WELL- POSITIONED CORONAL HOLE WEST OF CENTRAL MERIDIAN. THE GREATER
THAN 2 MEV ELECTRON FLUX AT GEOSYNCHRONOUS ORBIT APPROACHED HIGH
LEVELS AT APPROXIMATELY 1500Z.
IIB. Geofüüsikalise aktiivsuse ennustus
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE UNSETTLED THE NEXT THREE DAYS. THERE IS A GOOD CHANCE
FOR ISOLATED ACTIVE CONDITIONS DURING LOCAL NIGHTTIME HOURS. A
GREATER THAN 10 MEV PROTON EVENT IS ALSO POSSIBLE DURING THE PERIOD,
PENDING FURTHER ACTIVITY FROM REGIONS 8673 AND 8674.
III. Sündmuste tõenäosus 28 AUGkuni 30 AUG
| Klass M | 80% | 80% | 80% |
| Klass X | 40% | 40% | 40% |
| Prooton | 40% | 40% | 40% |
| PCAF | GREEN | ||
IV. Pikklaine 10.7 cm kiirgus
Vaadeldud 27 AUG 223 Prognoositud 28 AUG-30 AUG 225/220/220 90 päeva keskmine 27 AUG 167
V. Geomagneetiline A-indeks
OBSERVED AFR/AP 26 AUG 010/013 ESTIMATED AFR/AP 27 AUG 010/012 PREDICTED AFR/AP 28 AUG-30 AUG 010/010-010/010-010/010
VI. Geomagnetilised aktiivsuse tõenäosused 28 AUG kuni 30 AUG
| A. Keskmistel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 30% | 30% | 20% |
| Väike torm | 10% | 10% | 05% |
| Suur-tõsine torm | 01% | 01% | 01% |
| B. Kõrgetel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 40% | 40% | 30% |
| Väike torm | 15% | 15% | 10% |
| Suur-tõsine torm | 01% | 01% | 01% |
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