Viewing archive of lördag, 12 maj 2001
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 2001 May 12 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 132 publicerat klockan 2200Z på 12 May 2001IA. Analys av solfläcksgrupper och solaktivitet från 11-2100Z till 12-2100Z Solar activity was low during the past 24 hours.
Several C-class events were observed. The largest of these was a
C5/Sf flare at 1210 UTC from Region 9454 (N13E46). Region 9454 is
currently the largest sunspot group on the disk and has some
magnetic complexity. Region 9455 (S16E03) grew steadily during the
past 24 hours and produced the majority of today's C-class events.
Newly assigned Region 9456 (N06W04) emerged on the disk during the
past 24 hours.
IB. Prognos för solaktivitet
Solar activity is expected to be low
to moderate. There is a fair chance for an isolated M-class event
during the next three days from any of regions 9454, 9455, or 9456.
Of these, Region 9455 appears to be the best candidate for continued
flare activity.
IIA. Sammanfattning av geofysisk aktivitet 11-2100Z till 12-2100Z
The geomagnetic field ranged from quiet to major storm levels during
the past 24 hours. Unsettled to active levels predominated most of
the day, but the period from 0900-1500Z saw minor storm levels at
mid-latitudes and major storm levels at high latitudes.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is
expected to be unsettled to active for the next 24 hours.
Predominantly unsettled levels should prevail during the second and
third days.
III. Chans för solutbrott från 13 May till 15 May
| M-klass | 35% | 35% | 35% |
| X-klass | 05% | 05% | 05% |
| Proton | 05% | 05% | 05% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observerad 12 May 138 Prognoserat 13 May-15 May 140/142/144 90 Day Mean 12 May 167
V. Geomagnetiskt A-index
Observerad Afr/Ap 11 May 005/009 Förväntat Afr/Ap 12 May 025/035 Prognoserat Afr/Ap 13 May-15 May 015/015-012/010-010/010
VI. Chanser för geomagnetisk aktivitet från 13 May till 15 May
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 25% | 20% | 20% |
| Små stormförhållanden | 15% | 10% | 10% |
| Svåra stormförhållanden | 10% | 05% | 05% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 30% | 25% | 25% |
| Små stormförhållanden | 20% | 15% | 15% |
| Svåra stormförhållanden | 10% | 05% | 05% |
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