Viewing archive of torsdag, 4 oktober 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 Oct 04 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 277 publicerat klockan 2200Z på 04 Oct 2001IA. Analys av solfläcksgrupper och solaktivitet från 03-2100Z till 04-2100Z Solar activity was low. Regions 9636 (N13W70) and 9645
(S17W41) produced C2/Sf events early in the period. Several Type
III radio sweeps and discrete frequency radio bursts made up the
rest of today's activity. The partial halo CME seen on EIT imagery
yesterday appears to have been caused by a back-side source. Region
9636 and Region 9641 (S13W19) both showed an increase area coverage
of their respective spot coverage today. Three new groups were
numbered today, Region 9651 (S22W12), Region 9652 (N22E14), and
Region 9653 (S23E76). Region 9653 has a penumbral spot that can be
seen rotating onto the east limb and has a latitude of that in which
old Region 9608 had as it departed the west limb.
IB. Prognos för solaktivitet
Solar activity is expected to be
moderate. Region 9636 and Region 9645 remain capable of producing
M-class flares.
IIA. Sammanfattning av geofysisk aktivitet 03-2100Z till 04-2100Z
The geomagnetic field was at quiet to minor storm levels. The
greater than 10 MeV proton flux peaked at 02/0810 UTC, 2360 pfu.
Flux levels remain above event level at time of bulletin issue.
IIB. Prognos för geofysisk aktivitet
Geomagnetic activity is
expected to be at quiet to unsettled levels with isolated active
periods possible early on the first day of forecast period due to
CME passage.
III. Chans för solutbrott från 05 Oct till 07 Oct
| M-klass | 40% | 40% | 40% |
| X-klass | 10% | 10% | 10% |
| Proton | 99% | 10% | 10% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observerad 04 Oct 187 Prognoserat 05 Oct-07 Oct 185/190/195 90 Day Mean 04 Oct 180
V. Geomagnetiskt A-index
Observerad Afr/Ap 03 Oct 026/053 Förväntat Afr/Ap 04 Oct 015/020 Prognoserat Afr/Ap 05 Oct-07 Oct 010/010-008/010-008/010
VI. Chanser för geomagnetisk aktivitet från 05 Oct till 07 Oct
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 15% | 15% | 15% |
| Små stormförhållanden | 05% | 05% | 05% |
| Svåra stormförhållanden | 01% | 01% | 01% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 25% | 20% | 20% |
| Små stormförhållanden | 10% | 10% | 10% |
| Svåra stormförhållanden | 01% | 01% | 01% |
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