Vaata neljapäev, 11 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 11 2200 UTCValminud NOAA © SWPC ja töödeldud SpaceWeatherLive.com-iga
Ühine USAF / NOAA päikese- ja geofüüsikaalase aktiivsuse aruanne
SDF number 315 Välja antud 2200Z kuni 11 NOV 1999IA. Päikese aktiivsete piirkondade ja päikeseaktiivsuse analüüs alates 10-2100Z kuni 11-2100Z SOLAR ACTIVITY REMAINED MODERATE. EARLY IN THE PERIOD,
REGION 8753 (N18W36) PRODUCED AN M1/1N FLARE AT 10/2213Z. MODERATE
CENTIMETRIC RADIO BURSTS ACCOMPANIED THIS EVENT. DECAY OCCURRED IN
THIS REGION IN THE PAST 24 HOURS. REGION 8759 (N10E20) GENERATED A
C8/1N AT 11/1449Z. THIS REGION ALSO DECAYED IN WHITE LIGHT AREA
DURING THE PERIOD. REGION 8760 (N13W17) PRODUCED SEVERAL SUBFLARES
AND CONTINUED TO EMERGE BUT AT A SLOW RATE. A MODERATE SIZE NEW
REGION, 8765 (S10E73), ROTATED OVER THE LIMB BEHIND REGION 8763
(S14E60). REGION 8763 PRODUCED SEVERAL LOW LEVEL C-CLASS FLARES.
IB. Päikese aktiivsuse ennustus
SOLAR ACTIVITY SHOULD REMAIN GENERALLY
MODERATE. REGIONS 8759 AND 8760 REMAIN AS THE LIKELY SOURCES OF
M-CLASS FLARES DUE TO THEIR SIZE AND SLIGHTLY MIXED MAGNETIC FIELDS.
HOWEVER, SEVERAL OTHER LESSER REGIONS COULD PRODUCE ISOLATED
M-CLASS EVENTS. THERE REMAINS A SLIGHT POSSIBILITY OF A MAJOR FLARE
FROM REGIONS 8759 AND 8760.
IIA. Summaarne geofüüsikaline aktiivsus 10-2100Z kuni 11-2100Z
THE GEOMAGNETIC FIELD WAS AT QUIET TO MINOR STORM LEVELS. THE MOST
DISTURBED PERIOD WAS FROM 11/0300-1200Z. SOLAR WIND VELOCITY
INCREASED TO AROUND 650 KM/S AND DENSITY REMAINED LOW INDICATING THE
EARTH REMAINS IN THE CORONAL HOLE STREAM MENTIONED OVER THE LAST FEW
DAYS. ENERGETIC ELECTRON FLUXES AT GEOSYNCHRONOUS ORBIT REACHED HIGH
LEVELS DURING THE PERIOD. NO SOHO CORONAGRAPH DATA HAVE BEEN
AVAILABLE SINCE 08 NOV.
IIB. Geofüüsikalise aktiivsuse ennustus
THE GEOMAGNETIC FIELD SHOULD
REMAIN DISTURBED ON 12 NOV. ACTIVE TO MINOR STORM LEVELS ARE
EXPECTED ON THAT DAY. ON 13 NOV, THE FIELD SHOULD BECOME UNSETTLED
TO SLIGHTLY ACTIVE AS THE CURRENT CORONAL HOLE RELATED DISTURBANCE
SUBSIDES. MOSTLY QUIET CONDITIONS ARE FORECAST FOR 14 NOV. ENERGETIC
ELECTRON FLUXES AT GEOSYNCHRONOUS SHOULD REMAIN ELEVATED FOR THE
NEXT THREE DAYS.
III. Sündmuste tõenäosus 12 NOVkuni 14 NOV
| Klass M | 70% | 70% | 70% |
| Klass X | 15% | 15% | 15% |
| Prooton | 10% | 10% | 10% |
| PCAF | GREEN | ||
IV. Pikklaine 10.7 cm kiirgus
Vaadeldud 11 NOV 240 Prognoositud 12 NOV-14 NOV 242/245/245 90 päeva keskmine 11 NOV 159
V. Geomagneetiline A-indeks
OBSERVED AFR/AP 10 NOV 013/012 ESTIMATED AFR/AP 11 NOV 023/025 PREDICTED AFR/AP 12 NOV-14 NOV 018/018-010/010-008/008
VI. Geomagnetilised aktiivsuse tõenäosused 12 NOV kuni 14 NOV
| A. Keskmistel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 40% | 30% | 10% |
| Väike torm | 25% | 15% | 05% |
| Suur-tõsine torm | 05% | 01% | 01% |
| B. Kõrgetel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 40% | 30% | 15% |
| Väike torm | 30% | 15% | 05% |
| Suur-tõsine torm | 10% | 01% | 01% |
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