Vaata esmaspäev, 20 aprill 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 Apr 20 2200 UTCValminud NOAA © SWPC ja töödeldud SpaceWeatherLive.com-iga
Ühine USAF / NOAA päikese- ja geofüüsikaalase aktiivsuse aruanne
SDF number 110 Välja antud 2200Z kuni 20 APR 1998IA. Päikese aktiivsete piirkondade ja päikeseaktiivsuse analüüs alates 19-2100Z kuni 20-2100Z SOLAR ACTIVITY BECAME MODERATE. A LONG DURATION M1
X-RAY EVENT AND TYPE II SWEEP OCCURRED AT 20/1021UT. THE LIKELY
SOURCE FOR THE FLARE WAS BEHIND THE SW LIMB. SPACE-BASED SENSORS
INDICATE STRONG EMISSIONS ON THE LIMB ALONG S25. A LARGE CME WAS
ALSO OBSERVED OFF THE W-SW LIMB. FAINT POST FLARE LOOPS WERE ALSO
EVIDENT. REGION 8205 (N21W40) CHANGED VERY LITTLE IN THE PAST 24
HOURS, AND MAINTAINS IT'S DSO BETA CONFIGURATION. THE REMAINING
REGIONS HAVE BEEN QUIET.
IB. Päikese aktiivsuse ennustus
SOLAR ACTIVITY IS EXPECTED TO BE VERY
LOW TO LOW. REGION 8205 HAS SMALL POTENTIAL TO PRODUCE A C-CLASS
FLARE. FURTHER ACTIVITY ALONG THE SW LIMB IS POSSIBLE BUT UNLIKELY
AS POSSIBLE SOURCE REGION ROTATES FURTHER BEHIND THE LIMB.
IIA. Summaarne geofüüsikaline aktiivsus 19-2100Z kuni 20-2100Z
THE GEOMAGNETIC FIELD WAS QUIET TO ACTIVE. A GREATER THAN 10 MEV
PROTON EVENT BEGAN AT 20/1130Z, PASSED THE 10 PFU THRESHOLD AT
20/1400Z, AND IS CURRENTLY STEADY AT A MAXIMUM OF 330 PFU. THE
GREATER THAN 100 MEV PROTON FLUX IS AT 2.3 PFU AND STILL RISING
SLOWLY. POLAR CAP ABSORPTION IS CURRENTLY AT A MAXIMUM OF 6.4 DB.
IIB. Geofüüsikalise aktiivsuse ennustus
THE GEOMAGNETIC FIELD IS
EXPECTED TO CONTINUE AT QUIET TO ACTIVE LEVELS. MOST OF THE MATERIAL
FROM THIS MORNING'S ACTIVITY APPEARS WESTWARD BOUND, THUS, NO
SIGNIFICANT IMPACT IS EXPECTED ON THE GEOMAGNETIC FIELD. THE 10 AND
100 MEV PROTON EVENTS ARE EXPECTED TO CONTINUE THROUGH TOMORROW.
III. Sündmuste tõenäosus 21 APRkuni 23 APR
| Klass M | 10% | 05% | 05% |
| Klass X | 01% | 01% | 01% |
| Prooton | 10% | 05% | 01% |
| PCAF | IN PROGRESS | ||
IV. Pikklaine 10.7 cm kiirgus
Vaadeldud 20 APR 098 Prognoositud 21 APR-23 APR 096/094/092 90 päeva keskmine 20 APR 104
V. Geomagneetiline A-indeks
OBSERVED AFR/AP 19 APR 002/004 ESTIMATED AFR/AP 20 APR 010/012 PREDICTED AFR/AP 21 APR-23 APR 010/010-012/012-010/012
VI. Geomagnetilised aktiivsuse tõenäosused 21 APR kuni 23 APR
| A. Keskmistel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 15% | 25% | 25% |
| Väike torm | 05% | 10% | 10% |
| Suur-tõsine torm | 01% | 05% | 05% |
| B. Kõrgetel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 20% | 30% | 30% |
| Väike torm | 05% | 15% | 10% |
| Suur-tõsine torm | 05% | 11% | 11% |
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