Viewing archive of lördag, 25 juli 1998

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 1998 Jul 25 2200 UTC
Skapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com

USAF/NOAA rapport för sol- och geofysisk aktivitet

SDF Nummer 206 publicerat klockan 2200Z på 25 JUL 1998

IA. Analys av solfläcksgrupper och solaktivitet från 24-2100Z till 25-2100Z

SOLAR ACTIVITY CONTINUED AT LOW LEVELS. TWO C-CLASS FLARES OCCURRED, ONE OF WHICH WAS OPTICALLY TIED TO REGION 8280 (S23E27). THIS REGION REMAINED A MODERATELY LARGE, STABLE H-TYPE. REGION 8282 (N31E31) STABILIZED EARLY IN THE PERIOD FOLLOWING A DAY OF MODERATE GROWTH. THERE WERE SOME SIGNS OF MAGNETIC COMPLEXITY WITHIN THE REGION WITH A WEAK DELTA MAGNETIC CONFIGURATION REPORTED.
IB. Prognos för solaktivitet
SOLAR ACTIVITY IS EXPECTED TO BE PREDOMINATELY LOW WITH A FAIR CHANCE FOR AN ISOLATED M-CLASS FLARE FROM REGION 8280 OR 8282.
IIA. Sammanfattning av geofysisk aktivitet 24-2100Z till 25-2100Z
THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED UNTIL 25/0500UT. ACTIVITY INCREASED DURING 25/0500 - 0900UT WITH ACTIVE LEVELS AT MIDDLE LATITUDES AND ACTIVE TO MAJOR STORM LEVELS AT HIGH LATITUDES. THE GEOMAGNETIC FIELD RETURNED TO QUIET TO UNSETTLED LEVELS AFTER 25/0900UT. THE GREATER THAN 2 MEV ELECTRON FLUX WAS AT HIGH LEVELS DURING MOST OF THE PERIOD.
IIB. Prognos för geofysisk aktivitet
THE GEOMAGNETIC FIELD IS EXPECTED TO BE MOSTLY QUIET TO UNSETTLED. THE GREATER THAN 2 MEV ELECTRON FLUX IS EXPECTED TO BE AT MODERATE TO HIGH LEVELS.
III. Chans för solutbrott från 26 JUL till 28 JUL
M-klass30%30%30%
X-klass05%05%05%
Proton05%05%05%
PCAFGREEN
IV. Penticton 10.7 cm Flux
  Observerad       25 JUL 122
  Prognoserat   26 JUL-28 JUL  124/126/128
  90 Day Mean        25 JUL 109
V. Geomagnetiskt A-index
OBSERVED AFR/AP 24 JUL  018/022
ESTIMATED AFR/AP 25 JUL  014/012
PREDICTED AFR/AP 26 JUL-28 JUL  010/007-007/007-007/010
VI. Chanser för geomagnetisk aktivitet från 26 JUL till 28 JUL
A. Medelhöga breddgrader
Aktivt15%10%10%
Små stormförhållanden05%05%05%
Svåra stormförhållanden01%01%01%
B. Höga breddgrader
Aktivt20%15%15%
Små stormförhållanden05%05%05%
Svåra stormförhållanden01%01%01%
THE FOLLOWING CHANGES WILL OCCUR ON MONDAY, 27 JULY: GOES-9 WILL BE TAKEN OUT OF OPERATIONAL STATUS. GOES-8 WILL BECOME THE PRIMARY SPACECRAFT FOR SWO DATA AND PRODUCTS. GOES-10 WILL BE THE SECONDARY SPACECRAFT.

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