Viewing archive of lördag, 23 september 2000
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 2000 Sep 23 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 267 publicerat klockan 2200Z på 23 SEP 2000IA. Analys av solfläcksgrupper och solaktivitet från 22-2100Z till 23-2100Z SOLAR ACTIVITY HAS BEEN LOW. THE LARGEST EVENT OF THE
DAY WAS AN OPTICALLY UNCORRELATED C8 FLARE AT 22/2350 UTC. EIT
IMAGERY SUGGESTS THIS EVENT WAS DUE TO ACTIVITY BEHIND THE NW LIMB.
ELSEWHERE, REGION 9169 (N11E04) REMAINS IMPRESSIVE IN SIZE AND
MAGNETIC COMPLEXITY, BUT ACTIVITY WAS LIMITED TO SEVERAL LESSER
C-CLASS SUBFAINT FLARES THROUGHOUT THE DAY, AND A DISAPPEARING
11-DEGREE SOLAR FILAMENT, THOUGH WITHOUT EVIDENCE OF ANY CME
ACTIVITY OF SIGNIFICANCE. REGIONS 9166 (S11W44) AND 9167 (N14W11)
WERE ALSO SOURCES OF C-CLASS ACTIVITY.
IB. Prognos för solaktivitet
SOLAR ACTIVITY IS EXPECTED TO BE LOW
TO MODERATE. REGION 9169 REMAINS A LIKELY SOURCE OF ISOLATED MAJOR
FLARE ACTIVITY, AND REGION 9166 A POSSIBLE SOURCE OF MODERATE
ACTIVITY.
IIA. GEOPHYSICAL ACTIVITY SUMMARY 22/2100Z TO 23/2100Z:
THE GEOMAGNETIC FIELD WAS AT QUIET TO UNSETTLED LEVELS THROUGHOUT THE
DAY. GREATER-THAN-2 MEV ELECTRONS AT GEOSYNCHRONOUS ORBIT WERE AT
MODERATE LEVELS DURING LOCAL DAYTIME HOURS.
IIB. Prognos för geofysisk aktivitet
THE GEOMAGNETIC FIELD IS
EXPECTED TO REMAIN AT QUIET TO UNSETTLED LEVELS THROUGH DAY ONE,
WITH AN INCREASED CHANCE OF ACTIVE LEVELS AND ISOLATED MINOR
STORMING ON DAYS TWO AND THREE, DUE TO THE EXPECTED INFLUENCE OF A
FAVORABLY POSITIONED CORONAL HOLE. MODERATE ENHANCEMENTS OF
GREATER-THAN-2 MEV ELECTRONS AT GEOSYNCHRONOUS ORBIT ARE EXPECTED
TO RECUR DURING LOCAL DAYTIME HOURS THROUGHOUT THE PERIOD.
III. Chans för solutbrott från 24 SEP till 26 SEP
| M-klass | 70% | 70% | 70% |
| X-klass | 25% | 25% | 25% |
| Proton | 05% | 10% | 10% |
| PCAF | YELLOW | ||
IV. Penticton 10.7 cm Flux
Observerad 23 SEP 225 Prognoserat 24 SEP-26 SEP 225/225/220 90 Day Mean 23 SEP 180
V. Geomagnetiskt A-index
OBSERVED AFR/AP 22 SEP 006/007 ESTIMATED AFR/AP 23 SEP 007/008 PREDICTED AFR/AP 24 SEP-26 SEP 010/010-018/020-015/015
VI. Chanser för geomagnetisk aktivitet från 24 SEP till 26 SEP
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 20% | 25% | 25% |
| Små stormförhållanden | 10% | 15% | 15% |
| Svåra stormförhållanden | 01% | 01% | 01% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 25% | 30% | 30% |
| Små stormförhållanden | 10% | 15% | 15% |
| Svåra stormförhållanden | 01% | 01% | 01% |
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