Viewing archive of tisdag, 23 oktober 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 Oct 23 2200 UTC
Skapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com

USAF/NOAA rapport för sol- och geofysisk aktivitet

SDF Nummer 297 publicerat klockan 2200Z på 23 Oct 2012

IA. Analys av solfläcksgrupper och solaktivitet från 22-2100Z till 23-2100Z

Solar activity has been high. Region 1598 (S12E44) produced an X1 event with an associated Tenflare and Type-II radio sweep at 23/0317Z. There was no CME observed in association with this event. Region 1598 remains the most threatening region on the disk and appears to have a Delta magnetic configuration within its trailer spots. Region 1596 (N07E06) is also moderately sized and has some magnetic complexity, but did not produce any flares during the period. Region 1593 (N15W33) produced a long-duration C3 event at 23/0821Z with an associated CME seen on STEREO-A imagery. There is not enough data available to model the CME, but at this time it does not appear likely to be geoeffective. Newly numbered Region 1599 (S09E73) appears to have a simple alpha magnetic class. The other regions on the disk either remained stable or were decaying.
IB. Prognos för solaktivitet
Solar activity is expected to be moderate to high with occasional M-class events, and a slight chance for an isolated X-class event for the next three days (24 - 26 Oct) with Region 1598 the most likely source.
IIA. Sammanfattning av geofysisk aktivitet 22-2100Z till 23-2100Z
The geomagnetic field was quiet for the past 24 hours. Solar wind speed, as measured at the ACE spacecraft, remained steady throughout the period at approximately 370 km/s. The Bz component of the interplanetary magnetic field ranged from +/- 4 nT and the Phi angle changed to a positive sector at 22/2300Z. These signatures are consistent with a solar sector boundary crossing. The greater than 2 MeV electron flux at geosynchronous orbit was at high levels throughout the period.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is expected to be quiet for the next three days (24 - 26 Oct).
III. Chans för solutbrott från 24 Oct till 26 Oct
M-klass75%75%75%
X-klass20%20%20%
Proton05%10%15%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observerad       23 Oct 142
  Prognoserat   24 Oct-26 Oct  140/140/140
  90 Day Mean        23 Oct 121
V. Geomagnetiskt A-index
  Observerad Afr/Ap 22 Oct  002/002
  Förväntat     Afr/Ap 23 Oct  007/007
  Prognoserat    Afr/Ap 24 Oct-26 Oct  006/005-006/005-006/005
VI. Chanser för geomagnetisk aktivitet från 24 Oct till 26 Oct
A. Medelhöga breddgrader
Aktivt05%05%05%
Små stormförhållanden01%01%01%
Svåra stormförhållanden01%01%01%
B. Höga breddgrader
Aktivt15%15%15%
Små stormförhållanden15%15%10%
Svåra stormförhållanden05%05%05%

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