Viewing archive of söndag, 10 juli 2011
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 2011 Jul 10 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 191 publicerat klockan 2200Z på 10 Jul 2011IA. Analys av solfläcksgrupper och solaktivitet från 09-2100Z till 10-2100Z Solar activity has been at very low levels for the past
24 hours. Region 1247 (S18W15) grew in sunspot count and magnetic
complexity but has remained stable and quiet. Region 1250 (S25E48)
emerged on the disk early in the period and has grown rapidly to the
second largest group on the visible disk. Two CMEs were observed
during the period but after careful analysis, both CMEs were
determined to be backsided and non-geoeffective.
IB. Prognos för solaktivitet
Solar activity is expected to be at
low levels with a slight chance for M-class events for the next
three days (11-13 July) as both Region 1247 and 1250 continue to
grow and evolve.
IIA. Sammanfattning av geofysisk aktivitet 09-2100Z till 10-2100Z
The geomagnetic field has been at quiet to active levels for the past
24 hours. The elevated levels are due to the continued effects of a
coronal hole high speed stream (CH HSS). Solar wind speeds, as
measured by the ACE spacecraft, peaked at around 540 km/s but has
since started to decay to around 450 km/s.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is
expected to remain quiet to unsettled for day one (11 July) as the
effects of the CH HSS wane. On day two (12 July), levels ranging
from quiet to active are expected due to the combined effects from
another CH HSS and the CME observed on 09 July. A return to quiet to
unsettled levels is expected on day three (13 July) as effects from
both events wane.
III. Chans för solutbrott från 11 Jul till 13 Jul
| M-klass | 10% | 10% | 10% |
| X-klass | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observerad 10 Jul 091 Prognoserat 11 Jul-13 Jul 092/094/094 90 Day Mean 10 Jul 099
V. Geomagnetiskt A-index
Observerad Afr/Ap 09 Jul 010/012 Förväntat Afr/Ap 10 Jul 010/010 Prognoserat Afr/Ap 11 Jul-13 Jul 007/007-012/012-007/007
VI. Chanser för geomagnetisk aktivitet från 11 Jul till 13 Jul
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 20% | 30% | 20% |
| Små stormförhållanden | 05% | 10% | 05% |
| Svåra stormförhållanden | 01% | 01% | 01% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 25% | 40% | 25% |
| Små stormförhållanden | 05% | 10% | 05% |
| Svåra stormförhållanden | 01% | 01% | 01% |
All times in UTC
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