Vaata laupäev, 9 mai 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 May 09 2200 UTCValminud NOAA © SWPC ja töödeldud SpaceWeatherLive.com-iga
Ühine USAF / NOAA päikese- ja geofüüsikaalase aktiivsuse aruanne
SDF number 129 Välja antud 2200Z kuni 09 MAY 1998IA. Päikese aktiivsete piirkondade ja päikeseaktiivsuse analüüs alates 08-2100Z kuni 09-2100Z SOLAR ACTIVITY INCREASED TO HIGH LEVELS. AN M7 X-RAY
FLARE WAS DETECTED AT 09/0340UT. A MAJOR TYPE IV RADIO SWEEP, A 210
SFU TENFLARE, AND A CORONAL MASS EJECTION (CME) ACCOMPANIED THE
FLARE. THE CME WAS NOT EARTH-DIRECTED. OLD REGION 8210, NOW A DAY
AND A HALF BEYOND THE WEST LIMB, WAS THE LIKELY SOURCE OF THE FLARE.
REGION 8214 (N27W74) PRODUCED ISOLATED C-CLASS FLARES AND SHOWED
LITTLE CHANGE IN SIZE OR SPOT NUMBER, BUT ANALYSIS WAS DIFFICULT DUE
TO LIMB PROXIMITY. REGION 8218 (S19W34) WAS STABLE. REGION 8213
(S22W89) PRODUCED AN ERUPTIVE PROMINENCE (VERTICAL EXTENT 0.3 SOLAR
RADII) AS IT CROSSED THE WEST LIMB. NO NEW REGIONS WERE ASSIGNED.
IB. Päikese aktiivsuse ennustus
SOLAR ACTIVITY IS EXPECTED TO BE
MODERATE. REGIONS 8214 AND 8218 PROVIDE A FAIR CHANCE FOR ISOLATED
M-CLASS ACTIVITY.
IIA. Summaarne geofüüsikaline aktiivsus 08-2100Z kuni 09-2100Z
THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED. A GREATER THAN 10 MEV
PROTON ENHANCEMENT FOLLOWED THE M7 FLARE. IT BEGAN NEAR 09/0600UT
AND GRADUALLY INCREASED THROUGH THE PERIOD. FLUXES WERE NEAR EVENT
THRESHOLD AT THE END OF THE PERIOD. THE GREATER THAN 2 MEV ELECTRON
FLUX WAS AT MODERATE TO HIGH LEVELS.
IIB. Geofüüsikalise aktiivsuse ennustus
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE MOSTLY UNSETTLED THROUGH THE PERIOD. THE GREATER THAN
10 MEV PROTON FLUX WILL LIKELY REACH EVENT THRESHOLD EARLY IN THE
PERIOD, THEN GRADUALLY DECLINE TO BACKGROUND LEVEL.
III. Sündmuste tõenäosus 10 MAYkuni 12 MAY
| Klass M | 50% | 40% | 20% |
| Klass X | 05% | 05% | 01% |
| Prooton | 05% | 05% | 01% |
| PCAF | GREEN | ||
IV. Pikklaine 10.7 cm kiirgus
Vaadeldud 09 MAY 111 Prognoositud 10 MAY-12 MAY 110/104/100 90 päeva keskmine 09 MAY 107
V. Geomagneetiline A-indeks
OBSERVED AFR/AP 08 MAY 024/020 ESTIMATED AFR/AP 09 MAY 010/015 PREDICTED AFR/AP 10 MAY-12 MAY 010/010-012/010-012/010
VI. Geomagnetilised aktiivsuse tõenäosused 10 MAY kuni 12 MAY
| A. Keskmistel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 25% | 30% | 30% |
| Väike torm | 10% | 10% | 10% |
| Suur-tõsine torm | 01% | 01% | 01% |
| B. Kõrgetel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 30% | 35% | 35% |
| Väike torm | 10% | 20% | 20% |
| Suur-tõsine torm | 01% | 01% | 01% |
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