Vaata teisipäev, 18 august 1998 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 1998 Aug 18 2200 UTCValminud NOAA © SWPC ja töödeldud SpaceWeatherLive.com-iga
Ühine USAF / NOAA päikese- ja geofüüsikaalase aktiivsuse aruanne
SDF number 230 Välja antud 2200Z kuni 18 AUG 1998IA. Päikese aktiivsete piirkondade ja päikeseaktiivsuse analüüs alates 17-2100Z kuni 18-2100Z SOLAR ACTIVITY HAS BEEN HIGH. TWO X LEVEL (1.2 AT
17/2120UT AND 2.8 AT 18/0818UT)AND ONE M LEVEL (1.5 AT 18/0414UT)
X-RAY EVENTS HAVE OCCURRED IN THE LAST 24 HOURS. THEY ARE BEING
ASSOCIATED WITH REGION 8307 (N30E77) WHICH IS IN THE PROCESS OF
CROSSING THE LIMB. OPTICAL AND X-RAY SENSORS HAVE SHOWN CORONAL
LOOPS AND RAIN AS WELL AS ACTIVE SURGES AND BRIGHTENINGS. A SINGLE
SPOT HAS COME OVER THE LIMB AT TIME OF ISSUE, BUT OF UNKNOWN TYPE.
SUB-FAINT FLARES HAVE OCCURRED IN REGIONS 8297 (N32W80) AND 8299
(N16W69). A TYPE IV AND 10CM BURST WERE ASSOCIATED WITH THE X2.8
FLARE WHICH OCCURRED AT 0818UT. NO PARTICLE, PCA, OR GLE EVENTS
HAVE TAKEN PLACE, AND THEY ARE NOT EXPECTED TO OCCUR.
IB. Päikese aktiivsuse ennustus
SOLAR ACTIVITY IS EXPECTED TO BE
MODERATE TO HIGH.
IIA. Summaarne geofüüsikaline aktiivsus 17-2100Z kuni 18-2100Z
THE GEOMAGNETIC FIELD HAS BEEN QUIET. A CORONAL HOLE WHICH EXTENDS
FROM THE NORTHERN POLE TO ALMOST N30 IS BELIEVED TO BE MOVING ACROSS
THE CENTRAL MERIDIAN AND INTO A GEOEFFECTIVE POSITION. THREE DSFS
OCCURRED IN THE LAST 24 HOURS. THE SIZES AND LOCATIONS WERE 9 DEG
AT S30E22 ENDING AT 17/2332, 15 DEG AT N44W38 ENDING AT 17/2332, AND
10 DEG AT S51E16 ENDING AT 18/1150. THESE COMBINED WITH AN EXPECTED
HIGH SPEED STREAM ARE CAUSE FOR EXPECTING HIGHER GEOMAGNETIC
ACTIVITY IN THE NEXT 3 DAYS.
IIB. Geofüüsikalise aktiivsuse ennustus
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE UNSETTLED TO ACTIVE WITH ISOLATED MINOR STORM
CONDITIONS AT HIGHER LATITUDES NEAR THE END OF THE DAY AND LATER IN
THE PERIOD.
III. Sündmuste tõenäosus 19 AUGkuni 21 AUG
| Klass M | 75% | 75% | 75% |
| Klass X | 25% | 30% | 30% |
| Prooton | 10% | 10% | 15% |
| PCAF | GREEN | ||
IV. Pikklaine 10.7 cm kiirgus
Vaadeldud 18 AUG 133 Prognoositud 19 AUG-21 AUG 140/140/145 90 päeva keskmine 18 AUG 114
V. Geomagneetiline A-indeks
OBSERVED AFR/AP 17 AUG 001/005 ESTIMATED AFR/AP 18 AUG 005/010 PREDICTED AFR/AP 19 AUG-21 AUG 010/015-015/020-020/020
VI. Geomagnetilised aktiivsuse tõenäosused 19 AUG kuni 21 AUG
| A. Keskmistel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 10% | 20% | 20% |
| Väike torm | 05% | 10% | 10% |
| Suur-tõsine torm | 01% | 05% | 05% |
| B. Kõrgetel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 15% | 25% | 25% |
| Väike torm | 05% | 10% | 15% |
| Suur-tõsine torm | 01% | 05% | 05% |
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