Viewing archive of lördag, 1 september 2007
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 2007 Sep 01 2203 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 244 publicerat klockan 2200Z på 01 Sep 2007IA. Analys av solfläcksgrupper och solaktivitet från 31-2100Z till 01-2100Z Solar activity was very low. No flares were observed
during the past 24 hours. New Region 970 (S06W07) was assigned today
and is a small, C-type sunspot group. A filament eruption on the
west limb was observed beginning at about 31/2000Z in Stereo-A EUVI
images and was later seen as a limb CME in the Stereo-A COR1 and
COR2 coronagraphs just after 01/0000Z.
IB. Prognos för solaktivitet
Solar activity is expected to be very
low.
IIA. Sammanfattning av geofysisk aktivitet 31-2100Z till 01-2100Z
The geomagnetic field was mostly quiet to unsettled. There was an
isolated active period from 0900-1200Z. Real-time solar wind
measurements at the ACE spacecraft show a slow increase in speed
over the last 24 hours, from initial values around 420 km/s to about
520 km/s by forecast issue time. The increase is consistent with a
high speed stream from a favorably positioned coronal hole. The
greater than 2 MeV electron flux at geosynchronous orbit was at high
levels from 31/2100-31/2115 but was dropped below 1000 PFU for the
remainder of the period.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is
expected to be unsettled to active for the next 24 hours (02
September) as the high speed solar wind stream is expected to
continue. Conditions should subside to mostly unsettled for the
second day (03 September), and should be quiet to unsettled by the
third day (04 September).
III. Chans för solutbrott från 02 Sep till 04 Sep
| M-klass | 01% | 01% | 01% |
| X-klass | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observerad 01 Sep 071 Prognoserat 02 Sep-04 Sep 071/070/070 90 Day Mean 01 Sep 071
V. Geomagnetiskt A-index
Observerad Afr/Ap 31 Aug 007/007 Förväntat Afr/Ap 01 Sep 015/015 Prognoserat Afr/Ap 02 Sep-04 Sep 013/020-010/012-005/008
VI. Chanser för geomagnetisk aktivitet från 02 Sep till 04 Sep
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 35% | 35% | 15% |
| Små stormförhållanden | 15% | 15% | 05% |
| Svåra stormförhållanden | 05% | 05% | 01% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 35% | 30% | 15% |
| Små stormförhållanden | 20% | 15% | 05% |
| Svåra stormförhållanden | 10% | 10% | 01% |
All times in UTC
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