Vaata reede, 5 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 05 2200 UTCValminud NOAA © SWPC ja töödeldud SpaceWeatherLive.com-iga
Ühine USAF / NOAA päikese- ja geofüüsikaalase aktiivsuse aruanne
SDF number 309 Välja antud 2200Z kuni 05 NOV 1999IA. Päikese aktiivsete piirkondade ja päikeseaktiivsuse analüüs alates 04-2100Z kuni 05-2100Z SOLAR ACTIVITY INCREASED TO MODERATE LEVELS. REGION
8749 (S18W51) PRODUCED AN M1/1F FLARE AT 05/1718Z ACCOMPANIED BY
MODEST DISCRETE RADIO EMISSION. THIS REGION SHOWED GRADUAL DECAY,
BUT RETAINED A MIXED POLARITY STRUCTURE. A LONG-DURATION M3 X-RAY
FLARE OCCURRED AT 05/1829Z. THE SOURCE OF THE FLARE WAS JUST BEYOND
THE NORTHEAST LIMB WITH POST-FLARE LOOPS OBSERVED AT NE12 FOLLOWING
THE FLARE. EXTREMELY INTENSE CA XV ACTIVITY WAS VISIBLE ON THE
NORTHEAST LIMB, LIKELY INDICATING THE RETURN OF ACTIVE LONGITUDES.
NEW REGIONS 8755 (N19E71), 8756 (N18E11), AND 8757 (N38E09) WERE
ASSIGNED DURING THE PERIOD.
IB. Päikese aktiivsuse ennustus
SOLAR ACTIVITY IS EXPECTED TO BE AT
LOW TO MODERATE LEVELS. MORE M-CLASS FLARES ARE POSSIBLE FROM THE
VICINITY OF THE NORTHEAST LIMB. REGION 8749 MAY ALSO PRODUCE ANOTHER
ISOLATED M-CLASS FLARE.
IIA. Summaarne geofüüsikaline aktiivsus 04-2100Z kuni 05-2100Z
THE GEOMAGNETIC FIELD WAS AT QUIET TO UNSETTLED LEVELS. A SUDDEN
IMPULSE OCCURRED AT 05/2010Z WITH AN ESTIMATED MAGNITUDE OF 13 NT.
THERE WAS A SLIGHT INCREASE IN FIELD ACTIVITY FOLLOWING THE IMPULSE.
ACE RTSW DATA INDICATED AN ABRUPT, BUT MINOR INCREASE IN SOLAR WIND
VELOCITIES AND A GRADUAL RISE IN DENSITIES AT L1 PRIOR TO THE SUDDEN
IMPULSE.
IIB. Geofüüsikalise aktiivsuse ennustus
GEOMAGNETIC FIELD ACTIVITY IS
EXPECTED TO BE AT UNSETTLED LEVELS EARLY IN THE PERIOD INCREASING TO
UNSETTLED TO ACTIVE LEVELS BY DAY TWO. MINOR STORM PERIODS WILL BE
POSSIBLE AT HIGH LATITUDES DURING THE LATTER HALF OF THE PERIOD AS
WELL. THIS INCREASED ACTIVITY IS EXPECTED DUE TO RECURRENT CORONAL
HOLE EFFECTS. THE GREATER THAN 2 MEV ELECTRON FLUX MAY REACH HIGH
LEVELS LATE IN THE PERIOD.
III. Sündmuste tõenäosus 06 NOVkuni 08 NOV
| Klass M | 30% | 30% | 30% |
| Klass X | 05% | 05% | 05% |
| Prooton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Pikklaine 10.7 cm kiirgus
Vaadeldud 05 NOV 161 Prognoositud 06 NOV-08 NOV 165/175/185 90 päeva keskmine 05 NOV 154
V. Geomagneetiline A-indeks
OBSERVED AFR/AP 04 NOV 005/005 ESTIMATED AFR/AP 05 NOV 005/007 PREDICTED AFR/AP 06 NOV-08 NOV 012/010-015/018-015/030
VI. Geomagnetilised aktiivsuse tõenäosused 06 NOV kuni 08 NOV
| A. Keskmistel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 20% | 25% | 25% |
| Väike torm | 05% | 15% | 15% |
| Suur-tõsine torm | 01% | 01% | 05% |
| B. Kõrgetel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 20% | 25% | 35% |
| Väike torm | 10% | 15% | 20% |
| Suur-tõsine torm | 01% | 01% | 10% |
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