Viewing archive of måndag, 18 oktober 2004
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 2004 Oct 18 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 292 publicerat klockan 2200Z på 18 Oct 2004IA. Analys av solfläcksgrupper och solaktivitet från 17-2100Z till 18-2100Z Solar activity was very low. Minor B-class activity was
observed during the latter half of the period. A CME erupted from
the northeast limb at approximately 17/2030Z. SXI imagery indicates
a new active region rotating near N07 on the east limb. Region 682
(S13W03) has shown slight decay in both area coverage and magnetic
complexity. Region 683 (S10E08) is a D type group in very slow
growth. New regions 685 (S05E26) and 686 (S20E43) were numbered
today.
IB. Prognos för solaktivitet
Solar activity is expected to be very
low to low. Isolated C-class flares are possible from Regions 682
and 683. A new region rotating near N07 on the east limb may
increase solar activity levels in the coming days.
IIA. Sammanfattning av geofysisk aktivitet 17-2100Z till 18-2100Z
The geomagnetic field was mostly quiet with isolated unsettled levels
late in the period. Solar wind speed remains below 350 km/s. The
greater than 2 MeV electron flux at geosynchronous orbit was high,
and have been high since 14 October.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is
expected to be quiet to unsettled. Isolated active periods are
possible on 19 and 20 October.
III. Chans för solutbrott från 19 Oct till 21 Oct
| M-klass | 10% | 10% | 10% |
| X-klass | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observerad 18 Oct 096 Prognoserat 19 Oct-21 Oct 100/105/110 90 Day Mean 18 Oct 106
V. Geomagnetiskt A-index
Observerad Afr/Ap 17 Oct 000/003 Förväntat Afr/Ap 18 Oct 003/005 Prognoserat Afr/Ap 19 Oct-21 Oct 010/010-010/010-005/005
VI. Chanser för geomagnetisk aktivitet från 19 Oct till 21 Oct
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 20% | 20% | 15% |
| Små stormförhållanden | 05% | 05% | 05% |
| Svåra stormförhållanden | 01% | 01% | 01% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 25% | 25% | 20% |
| Små stormförhållanden | 10% | 10% | 05% |
| Svåra stormförhållanden | 01% | 01% | 01% |
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