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Rapporto attività solare
Ogni brillamento solare menzionato nel rapporto ha un fattore di scala, applicato dal Centro di Predizione Meteorologica Spaziale (SWPC). A causa del fattore di scala del SWPC, i brillamenti solari sono segnalati come ridotti del 42%, rispetto ai dati di qualità scientifica. Il fattore di scala è stato rimosso dai nostri dati archiviati sui brillamenti solari, per riflettere le unità fisiche reali.
Rapporto dell'Attività Geofisica Solare 1998 May 04 2200 UTC
Preparati dal SWPC della NOAA© ed elaborati da SpaceWeatherLive.comRapporto Congiunto USAF/NOAA dell'Attività Solare e Geofisica
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SDF Numero 124 Emesso alle 2200Z il MAY 04 1998
IA. Analisi delle Regioni Solari Attive e Attività dalle 2100Z-03 alle 2100Z-04
SOLAR ACTIVITY HAS BEEN MODERATE FOR THE PAST 24 HOURS.
AT 03/2129Z AN M1/1B TENFLARE (810 FLUX UNITS, 8 MINUTES DURATION)
ACCOMPANIED
BY A MAJOR TYPE IV SWEEP, WAS ASSOCIATED WITH A 1B FLARE IN REGION
8210 (S17W50) AND A SIMULTANEOUS SUBFAINT FLARE IN REGION 8214
(N27E18). SYMPATHETIC FLARING HAS BEEN A CHARACTERISTIC OF THESE TWO
WIDELY SEPARATED REGIONS FOR THE PAST SEVERAL DAYS. REGION 8210 HAS
FRAGMENTED AND SHOWN CONSIDERABLE DECAY, BUT REGION 8214 IS STILL
GROWING IN WHITE LIGHT ALTHOUGH IT HAS NOT DEVELOPED THE MAGNETIC
COMPLEXITY USUALLY ASSOCIATED WITH ENERGETIC EVENTS. AN ACTIVE
PROMINENCE ON THE SOUTHEAST LIMB WAS OBSERVED, BUT THE REMAINDER OF
THE DISK AND LIMBS WERE QUIET.
IB. Previsione dell'Attività Solare
SOLAR ACTIVITY IS EXPECTED TO BE
MODERATE BASED ON THE COMBINED FLARE POTENTIAL IN REGIONS 8210 AND
8214. THE PROBABILITY OF X-CLASS ACTIVITY HAS LESSENED WITH THE
RECENT SIMPLIFICATION OF REGION 8210, BUT ADDITIONAL GROWTH IN
REGION 8214 COULD BE A PRECURSOR TO NEW MAJOR EVENTS.
IIA. Sommario dell'Attività Geofisica dalle 2100Z-03 alle 2100Z-04
GEOMAGNETIC ACTIVITY HAS RANGED FROM UNSETTLED TO SEVERE STORM LEVELS
FOR THE PAST 24 HOURS. THIS DISTURBANCE IS ASSUMED TO BE RELATED TO
COMPLEX SOLAR WIND STRUCTURES ASSOCIATED WITH A SERIES OF ENERGETIC
SOLAR EVENTS BEGINNING ON 29 APRIL, AND ESPECIALLY AN X1 X-RAY EVENT
THAT REACHED MAXIMUM 02/1342 UT. A SHOCK PASSED THE ACE SPACECRAFT
AT APPROXIMATELY 04/0229 UT THAT WAS OBSERVED AT EARTH APPROXIMATELY
30 MINUTES LATER. THEREAFTER, A TWO-HOUR PERIOD OF VERY STRONG
(ABOUT 40 NT) SOUTHWARD SOLAR WIND MAGNETIC FIELD WAS OBSERVED,
RESULTING IN K INDICES OF 8 IN BOULDER BETWEEN 03-09 UT AND REPORTS
OF AURORAL SIGHTINGS IN THE NORTHERN UNITED STATES. THE ENERGETIC
PROTON EVENT THAT BEGAN ON 02/1405 ENDED 04/0310 UT.
IIB. Previsione dell'Attività Geofisica
GEOMAGNETIC ACTIVITY IS
EXPECTED TO EXPERIENCE PERIODS AT STORM LEVELS FOR THE NEXT 24
HOURS. WHILE IT IS CLEAR THAT THE LEADING PORTION OF THE CORONAL
MASS EJECTION ASSOCIATED WITH THE X1 FLARE HAS ARRIVED, IT IS NOT
CERTAIN WHETHER THE CORE OF THE EJECTION WILL YET ARRIVE. THEREFORE,
STORM LEVEL WARNINGS ARE ADVISED THROUGH 5 MAY. THE DISTURBANCE IS
EXPECTED TO END BY 7 MAY UNLESS NEW SOLAR EVENTS OCCUR.
III. Probabilità dell'Evento dalle MAY del 05 alle MAY del 07
Classe M | 50% | 50% | 50% |
Classe X | 10% | 10% | 10% |
Protone | 10% | 10% | 10% |
PCAF | YELLOW
|
IV. Flusso di 10.7 cm di Penticton
Osservato 04 MAY 121
Previsto 05 MAY-07 MAY 135/140/145
Media di 90 Giorni 04 MAY 105
V. Indici Geomagnetici A
OBSERVED AFR/AP 03 MAY 037/057
ESTIMATED AFR/AP 04 MAY 086/100
PREDICTED AFR/AP 05 MAY-07 MAY 050/060-025/045-010/025
VI. Probabilità dell'Attività Geomagnetica dal 05 MAY al 07 MAY
A. Latitudini Medie |
Attivo | 10% | 30% | 20% |
Tempesta minore | 20% | 25% | 05% |
Tempesta maggiore-grave | 60% | 20% | 01% |
B. Latitudini Alte |
Attivo | 10% | 30% | 50% |
Tempesta minore | 25% | 30% | 20% |
Tempesta maggiore-grave | 65% | 20% | 05% |
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