Viewing archive of söndag, 16 september 2012
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 2012 Sep 16 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 260 publicerat klockan 2200Z på 16 Sep 2012IA. Analys av solfläcksgrupper och solaktivitet från 15-2100Z till 16-2100Z Solar activity was very low. New Region 1573 (N17E62 -
Axx/alpha) produced occasional B-class flares as it rotated into
view. Region 1566 (N23W89 - Hrx/alpha) produced a B-class flare as
it approached the west limb. Region 1569 (S12W13 - Cso/beta) showed
gradual spot and penumbral decay in its intermediate and trailer
portions. New Region 1574 (S25W15 - Bxo/beta), a small
reverse-polarity group, was also numbered. No Earth-directed CME activity
occurred during the period.
IB. Prognos för solaktivitet
Solar activity is expected to be very
low through the period (17 - 19 September) with a chance for a
C-class flare.
IIA. Sammanfattning av geofysisk aktivitet 15-2100Z till 16-2100Z
Geomagnetic field activity was at quiet to unsettled levels. An
increase to unsettled levels occurred late in the period associated
with the onset of a solar sector boundary crossing (SSBC).
Intermittent periods of weakly-southward IMF Bz along with minor
increases in solar wind speeds and IMF Bt were associated with the
SSBC.
IIB. Prognos för geofysisk aktivitet
Geomagnetic field activity is
expected to remain at quiet to unsettled levels on day 1 (17
September) due to minor changes in the solar wind. A decrease to
quiet levels is expected on day 2 (18 September). Activity is
expected to increase to quiet to unsettled levels on day 3 (19
September), with a slight chance for active levels, as a coronal
hole high-speed stream begins to disturb the field.
III. Chans för solutbrott från 17 Sep till 19 Sep
| M-klass | 10% | 10% | 10% |
| X-klass | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observerad 16 Sep 097 Prognoserat 17 Sep-19 Sep 095/095/100 90 Day Mean 16 Sep 122
V. Geomagnetiskt A-index
Observerad Afr/Ap 15 Sep 005/006 Förväntat Afr/Ap 16 Sep 006/008 Prognoserat Afr/Ap 17 Sep-19 Sep 007/010-006/005-007/008
VI. Chanser för geomagnetisk aktivitet från 17 Sep till 19 Sep
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 10% | 10% | 10% |
| Små stormförhållanden | 01% | 01% | 01% |
| Svåra stormförhållanden | 01% | 01% | 01% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 20% | 15% | 15% |
| Små stormförhållanden | 20% | 15% | 25% |
| Svåra stormförhållanden | 10% | 05% | 15% |
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