Viewing archive of fredag, 15 juni 2001

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 2001 Jun 15 2200 UTC
Skapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com

USAF/NOAA rapport för sol- och geofysisk aktivitet

SDF Nummer 166 publicerat klockan 2200Z på 15 Jun 2001

IA. Analys av solfläcksgrupper och solaktivitet från 14-2100Z till 15-2100Z

Solar activity was high due to an M6/1n flare at 1013 UTC from Region 9502 (S25E32). The event was associated with a CME that was observed to enter the LASCO/C2 field of view at 1031 UTC. The CME was directed mostly to the southeast but a portion of it appeared to cross the solar south pole. Region 9502 is not showing growth, but it does have an east-west inversion line and continues to produce occasional flares. A subsequent impressive CME was observed on the west limb in LASCO/C2 images at beginning at 1648 UTC. There were no obvious disk or x-ray signatures, implying that the CME originated from behind the west limb. Regions 9503 (N15E46) and 9504 (N07E51) are currently the largest sunspot groups on the disk but were quiet and stable. Region 9503 is developing some magnetic complexity. New Region 9507 (N13E26) emerged on the disk today.
IB. Prognos för solaktivitet
Solar activity is expected to be moderate. Regions 9502 and 9503 are the most likely candidates for moderate or higher level activity. There is a slight chance for a major flare event.
IIA. Sammanfattning av geofysisk aktivitet 14-2100Z till 15-2100Z
The geomagnetic field was unsettled to slightly active. Solar wind observations suggest that the activity originated from enhanced density and interplanetary magnetic fields during a solar sector boundary crossing. A greater than 10 MeV proton event began today at 1750 UTC. The event appears to have originated from today's behind-the-limb event. The flux levels are rising slowly, with a peak flux as of forecast issue time of 23 PFU.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is expected to be mostly unsettled for the next 24 hours. An increase to mostly active is expected on the second day in response to possible effects from the partial halo of 14 June as well as possible effects from today's partial halo (associated with the M6 flare). Mostly unsettled levels are expected to prevail on the third day. The greater than 10 MeV proton event is expected to end sometime around 15/2400 UTC.
III. Chans för solutbrott från 16 Jun till 18 Jun
M-klass65%65%65%
X-klass10%10%10%
Proton99%10%10%
PCAFin progress
IV. Penticton 10.7 cm Flux
  Observerad       15 Jun 197
  Prognoserat   16 Jun-18 Jun  200/200/195
  90 Day Mean        15 Jun 171
V. Geomagnetiskt A-index
  Observerad Afr/Ap 14 Jun  006/009
  Förväntat     Afr/Ap 15 Jun  010/012
  Prognoserat    Afr/Ap 16 Jun-18 Jun  010/010-020/020-010/012
VI. Chanser för geomagnetisk aktivitet från 16 Jun till 18 Jun
A. Medelhöga breddgrader
Aktivt30%35%35%
Små stormförhållanden15%20%15%
Svåra stormförhållanden05%15%05%
B. Höga breddgrader
Aktivt30%35%30%
Små stormförhållanden15%25%15%
Svåra stormförhållanden05%20%10%

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