Viewing archive of måndag, 18 juli 2005

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 2005 Jul 18 2210 UTC
# Prepared jointly by the U.S. Dept. of Commerce, NOAA, #Space Environment Center and the U.S. Air Force. #

USAF/NOAA rapport för sol- och geofysisk aktivitet

SDF Nummer 199 publicerat klockan 2200Z på 18 Jul 2005

IA. Analys av solfläcksgrupper och solaktivitet från 17-2100Z till 18-2100Z

Solar activity decreased to very low levels. The visible disk was spotless today. Old Region 790 (S10 L=013) produced low level B-class flares very early in the period from beyond the solar west limb. The disk and limbs were fairly quiescent during the period. No new regions were numbered today.
IB. Prognos för solaktivitet
Solar activity is expected to be at very low levels.
IIA. Sammanfattning av geofysisk aktivitet 17-2100Z till 18-2100Z
The geomagnetic field has ranged from quiet to major storm levels. The elevated conditions may have resulted from the X1 flare and associated full halo CME that occurred on 14 July. The greater than 10 MeV proton flux that began on 14/0245Z, had a peak flux of 134 pfu at 15/0345Z, and ended at 18/1015Z.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is expected to be at predominantly unsettled to isolated active levels on 19 July. A recurrent high speed coronal hole stream is expected to become geoeffective on 20 July with active to minor storming conditions anticipated and isolated major storming possible. A decrease to predominantly unsettled to active levels can be expected on 21 July..
III. Chans för solutbrott från 19 Jul till 21 Jul
M-klass01%01%01%
X-klass01%01%01%
Proton20%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observerad       18 Jul 072
  Prognoserat   19 Jul-21 Jul  070/075/075
  90 Day Mean        18 Jul 097
V. Geomagnetiskt A-index
  Observerad Afr/Ap 17 Jul  015/022
  Förväntat     Afr/Ap 18 Jul  022/035
  Prognoserat    Afr/Ap 19 Jul-21 Jul  008/015-020/025-012/015
VI. Chanser för geomagnetisk aktivitet från 19 Jul till 21 Jul
A. Medelhöga breddgrader
Aktivt20%40%25%
Små stormförhållanden05%20%15%
Svåra stormförhållanden01%15%05%
B. Höga breddgrader
Aktivt35%40%35%
Små stormförhållanden15%30%15%
Svåra stormförhållanden05%20%05%

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