Viewing archive of torsdag, 28 december 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 Dec 28 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 363 publicerat klockan 2200Z på 28 Dec 2000IA. Analys av solfläcksgrupper och solaktivitet från 27-2100Z till 28-2100Z Solar activity was low. Several, mostly small C-class
flares were observed. Region 9289 (S06E57) has evolved quickly into
the largest and most complex region on the visible disk. It now
exhibits an "Eko" beta-gamma spot group nearing 800 millionths of
white light area, and was responsible for most of the C-class
flares. Region 9279 (S12W77) produced a C2/sf flare at 28/1429Z with
an associated Type II sweep. Region 9283 (S11W03) also produced
isolated C-class flares, the largest being a C5/sf at 27/2218Z.
Perhaps the most impressive event of the period was a large, full
halo CME on LASCO imagery at 28/1230Z. There was no optical
correlation of the source - the event appears to have originated
from the backside of the disk.
IB. Prognos för solaktivitet
Solar activity is expected to be low
to moderate. Region 9289 has potential for isolated M-class flares.
IIA. Sammanfattning av geofysisk aktivitet 27-2100Z till 28-2100Z
The geomagnetic field was mostly quiet with isolated unsettled
conditions at high latitudes.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is
expected to continue at quiet to unsettled levels.
III. Chans för solutbrott från 29 Dec till 31 Dec
| M-klass | 50% | 60% | 60% |
| X-klass | 10% | 10% | 10% |
| Proton | 05% | 05% | 05% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observerad 28 Dec 185 Prognoserat 29 Dec-31 Dec 185/185/185 90 Day Mean 28 Dec 173
V. Geomagnetiskt A-index
Observerad Afr/Ap 27 Dec 007/007 Förväntat Afr/Ap 28 Dec 008/008 Prognoserat Afr/Ap 29 Dec-31 Dec 005/010-005/010-005/010
VI. Chanser för geomagnetisk aktivitet från 29 Dec till 31 Dec
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 20% | 15% | 15% |
| Små stormförhållanden | 05% | 05% | 05% |
| Svåra stormförhållanden | 01% | 01% | 01% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 30% | 25% | 25% |
| Små stormförhållanden | 10% | 05% | 05% |
| Svåra stormförhållanden | 05% | 01% | 01% |
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