Viewing archive of tisdag, 8 december 1998
Solaktivitetsrapport
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.
Rapport för sol- och geofysisk aktivitet 1998 Dec 08 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 342 publicerat klockan 2200Z på 08 DEC 1998IA. Analys av solfläcksgrupper och solaktivitet från 07-2100Z till 08-2100Z SOLAR ACTIVITY WAS LOW. FIVE C-CLASS X-RAY EVENTS
OCCURRED OVER THE LAST 24 HOURS. THE LARGEST WAS A C7/1F EVENT FROM
REGION 8404 (S23W26) AT 08/1833Z. A CME WAS OBSERVED FROM A LARGE
ERUPTIVE PROMINENCE ON THE NORTH EAST LIMB AROUND 08/1542Z. NEW
REGION 8407 (S18E05) WAS NUMBERED, AND IS CURRENTLY A CAO BETA
GROUP. REGIONS 8404 AND 8405 HAVE SHOWN CONTINUED GROWTH SINCE
YESTERDAY.
IB. Prognos för solaktivitet
SOLAR ACTIVITY IS EXPECTED TO REMAIN
LOW WITH CONTINUED C-CLASS EVENTS. THERE IS A SLIGHT CHANCE FOR AN
ISOLATED M-CLASS EVENT.
IIA. Sammanfattning av geofysisk aktivitet 07-2100Z till 08-2100Z
THE GEOMAGNETIC FIELD HAS BEEN QUIET. THE GREATER THAN 2 MEV
ELECTRON FLUX HAS BEEN IN THE MODERATE TO HIGH RANGE.
IIB. Prognos för geofysisk aktivitet
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE QUIET TO UNSETTLED FOR THE NEXT THREE DAYS. NO
TERRESTRIAL EFFECTS ARE EXPECTED FROM THE CME ON THE NORTHEAST LIMB
THAT OCCURRED AROUND 08/1542Z DUE TO ITS POSITION (SEE PART IA
ABOVE).
III. Chans för solutbrott från 09 DEC till 11 DEC
| M-klass | 25% | 25% | 25% |
| X-klass | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observerad 08 DEC 162 Prognoserat 09 DEC-11 DEC 164/162/162 90 Day Mean 08 DEC 131
V. Geomagnetiskt A-index
OBSERVED AFR/AP 07 DEC 005/006 ESTIMATED AFR/AP 08 DEC 005/005 PREDICTED AFR/AP 09 DEC-11 DEC 008/008-008/008-008/010
VI. Chanser för geomagnetisk aktivitet från 09 DEC till 11 DEC
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 15% | 15% | 15% |
| Små stormförhållanden | 05% | 05% | 05% |
| Svåra stormförhållanden | 01% | 01% | 01% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 20% | 20% | 20% |
| Små stormförhållanden | 05% | 05% | 05% |
| Svåra stormförhållanden | 01% | 01% | 01% |
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