Vaata laupäev, 31 juuli 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 Jul 31 2200 UTCValminud NOAA © SWPC ja töödeldud SpaceWeatherLive.com-iga
Ühine USAF / NOAA päikese- ja geofüüsikaalase aktiivsuse aruanne
SDF number 212 Välja antud 2200Z kuni 31 JUL 1999IA. Päikese aktiivsete piirkondade ja päikeseaktiivsuse analüüs alates 30-2100Z kuni 31-2100Z SOLAR ACTIVITY WAS LOW. SEVERAL C-CLASS FLARES WERE
PRODUCED BY REGION 8651 (N25E23). THE LARGEST WAS A C5/SF AT
30/2335Z. THIS REGION REMAINS THE LARGEST REGION ON THE DISK AND IS
AN E-TYPE GROUP WITH A WHITE LIGHT AREA OF AROUND 730 MILLIONTHS.
THE SECOND MOST INTERESTING GROUP IS REGION 8645 (S25W16) WHICH ALSO
PRODUCED SEVERAL C-CLASS FLARES. THIS REGION HAS MAINTAINED A WHITE
LIGHT AREA OF AROUND 600 MILLIONTHS AND IS A F-TYPE GROUP. NEW
REGION 8654 (N19W18) WAS NUMBERED TODAY.
IB. Päikese aktiivsuse ennustus
SOLAR ACTIVITY IS EXPECTED TO BE LOW
TO MODERATE. REGIONS 8645 AND 8651 HAVE THE POTENTIAL FOR PRODUCING
ISOLATED M-CLASS EVENTS.
IIA. Summaarne geofüüsikaline aktiivsus 30-2100Z kuni 31-2100Z
THE GEOMAGNETIC FIELD WAS AT QUIET TO SEVERE STORM CONDITIONS. MAJOR
TO SEVERE STORMS WERE PRESENT EARLY IN THE PERIOD WITH UNSETTLED TO
ACTIVE LEVELS PREDOMINATE TOWARD THE END.
IIB. Geofüüsikalise aktiivsuse ennustus
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE UNSETTLED WITH PERIODS OF ACTIVE CONDITIONS THE FIRST
DAY OF THE FORECAST. THE SECOND AND THIRD DAYS ARE EXPECTED TO
RETURN TO QUIET TO UNSETTLED CONDITIONS.
III. Sündmuste tõenäosus 01 AUGkuni 03 AUG
| Klass M | 80% | 80% | 80% |
| Klass X | 15% | 15% | 15% |
| Prooton | 10% | 10% | 10% |
| PCAF | YELLOW | ||
IV. Pikklaine 10.7 cm kiirgus
Vaadeldud 31 JUL 201 Prognoositud 01 AUG-03 AUG 195/190/190 90 päeva keskmine 31 JUL 162
V. Geomagneetiline A-indeks
OBSERVED AFR/AP 30 JUL 041/036 ESTIMATED AFR/AP 31 JUL 018/020 PREDICTED AFR/AP 01 AUG-03 AUG 015/012-008/008-008/008
VI. Geomagnetilised aktiivsuse tõenäosused 01 AUG kuni 03 AUG
| A. Keskmistel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 25% | 15% | 15% |
| Väike torm | 05% | 05% | 05% |
| Suur-tõsine torm | 01% | 01% | 01% |
| B. Kõrgetel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 30% | 20% | 20% |
| Väike torm | 10% | 05% | 05% |
| Suur-tõsine torm | 05% | 01% | 01% |
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