Viewing archive of söndag, 17 februari 2002
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 2002 Feb 17 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 048 publicerat klockan 2200Z på 17 Feb 2002IA. Analys av solfläcksgrupper och solaktivitet från 16-2100Z till 17-2100Z Solar activity remained at low levels. Region 9830
(S18E31) was the most active of the visible regions. It produced
occasional subflares as it grew at a gradual pace with increased
sunspot area and magnetic complexity. A magnetic delta configuration
may have developed within its leader spots. Region 9825 (N12W35)
continued to gradually decay and simplify. The remaining active
regions were unremarkable.
IB. Prognos för solaktivitet
Solar activity is expected to be at
low to moderate levels. There is a chance for an isolated M-class
flare from Region 9830.
IIA. Sammanfattning av geofysisk aktivitet 16-2100Z till 17-2100Z
Geomagnetic field activity was at quiet to active levels. Activity
increased to unsettled to active levels during 17/0300 - 0900 UTC
following a sudden impulse at 17/0257 UTC (13 nT, as measured by the
Boulder USGS magnetometer). Field activity decreased to quiet to
unsettled levels after 17/0900 UTC. This brief increase in activity
appeared to be the result of a weak CME passage.
IIB. Prognos för geofysisk aktivitet
Geomagnetic field activity is
expected to be at quiet to unsettled levels.
III. Chans för solutbrott från 18 Feb till 20 Feb
| M-klass | 40% | 40% | 40% |
| X-klass | 05% | 05% | 05% |
| Proton | 05% | 05% | 05% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observerad 17 Feb 197 Prognoserat 18 Feb-20 Feb 195/195/190 90 Day Mean 17 Feb 222
V. Geomagnetiskt A-index
Observerad Afr/Ap 16 Feb 002/005 Förväntat Afr/Ap 17 Feb 008/008 Prognoserat Afr/Ap 18 Feb-20 Feb 010/010-010/012-010/012
VI. Chanser för geomagnetisk aktivitet från 18 Feb till 20 Feb
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 25% | 20% | 20% |
| Små stormförhållanden | 10% | 10% | 10% |
| Svåra stormförhållanden | 01% | 01% | 01% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 30% | 25% | 25% |
| Små stormförhållanden | 15% | 15% | 15% |
| Svåra stormförhållanden | 05% | 05% | 05% |
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