Viewing archive of tisdag, 22 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 22 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 356 publicerat klockan 2200Z på 22 DEC 1998IA. Analys av solfläcksgrupper och solaktivitet från 21-2100Z till 22-2100Z SOLAR ACTIVITY WAS LOW. REGION 8416 (N19E46) PRODUCED A
C1/SF AT 22/1833Z. THIS REGION EXHIBITED SLOW DECAY DURING THE
PERIOD. REGION 8415 (N20E12) PRODUCED SMALL SUBFLARES AND CONTINUED
TO SLOWLY DECAY AND SIMPLIFY. THE FILAMENT IN REGION 8414 (N26W23)
GREW SUBSTANTIALLY DURING THE PERIOD AND AT TIMES SHOWED STRONG
MOTION. RECENT X-RAY IMAGERY SHOWS A LARGE ENHANCED AREA OVER THE
NORTHEAST LIMB WHERE SEVERAL REGIONS ARE DUE TO RETURN.
IB. Prognos för solaktivitet
SOLAR ACTIVITY SHOULD BE PREDOMINANTLY
LOW DURING THE NEXT THREE DAYS. REGION 8415 RETAINS THE CAPABILITY
OF PRODUCING AN ISOLATED M-CLASS EVENT. THE REGIONS RETURNING TO THE
EAST LIMB COULD INCREASE THE FREQUENCY OF C-CLASS EVENTS. BETTER
ASSESSMENT OF THEIR FLARE POTENTIAL MUST AWAIT THEIR APPEARANCE ONTO
THE VISIBLE DISK. THE FILAMENT IN REGION 8414 IS EXPECTED TO ERUPT
SOMETIME PRIOR TO WEST LIMB TRANSIT. IF IT DOES, A LONG DURATION
X-RAY EVENT AND LARGE CORONAL MASS EJECTION WOULD LIKELY OCCUR.
IIA. Sammanfattning av geofysisk aktivitet 21-2100Z till 22-2100Z
THE GEOMAGNETIC FIELD WAS QUIET. THE DISTURBANCE FROM THE HALO
CORONAL MASS EJECTION ON 18 DEC FAILED TO MATERIALIZE.
IIB. Prognos för geofysisk aktivitet
THE GEOMAGNETIC FIELD SHOULD BE
QUIET TO SLIGHTLY UNSETTLED FOR THE NEXT THREE DAYS.
III. Chans för solutbrott från 23 DEC till 25 DEC
| M-klass | 30% | 30% | 30% |
| X-klass | 05% | 05% | 05% |
| Proton | 05% | 05% | 05% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observerad 22 DEC 129 Prognoserat 23 DEC-25 DEC 132/135/137 90 Day Mean 22 DEC 133
V. Geomagnetiskt A-index
OBSERVED AFR/AP 21 DEC 003/003 ESTIMATED AFR/AP 22 DEC 005/011 PREDICTED AFR/AP 23 DEC-25 DEC 008/012-008/009-008/009
VI. Chanser för geomagnetisk aktivitet från 23 DEC till 25 DEC
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 15% | 10% | 05% |
| Små stormförhållanden | 05% | 05% | 01% |
| Svåra stormförhållanden | 05% | 01% | 01% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 20% | 10% | 05% |
| Små stormförhållanden | 05% | 05% | 05% |
| Svåra stormförhållanden | 05% | 01% | 01% |
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