Viendo archivo del domingo, 12 septiembre 1999
Informe actividad solar
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.
Informe de actividad Solar-Geofísica 1999 Sep 12 2200 UTCPreparado por NOAA © SWPC y procesado por SpaceWeatherLive.com
Informe conjunto USAF/NOAA de actividad Solar y Geofísica
SDF Número 255 Publicado el 2200Z a las 12 SEP 1999IA. Análisis de regiones solares activas y de actividad desde 11-2100Z hasta 12-2100Z SOLAR ACTIVITY INCREASED, BUT REMAINED IN THE LOW
CATEGORY. REGION 8699 (N21E15) GREW RAPIDLY DURING THE PERIOD AND
PRODUCED NUMEROUS SUBFLARES, A FEW OF WHICH REACHED C-CLASS. THIS
REGION DISPLAYED A MODERATELY COMPLEX MAGNETIC STRUCTURE, POSSIBLY
INCLUDING A DELTA MAGNETIC CONFIGURATION. REGION 8692 (S26E11)
SHOWED SOME POLARITY MIXING, BUT WAS STABLE MUCH OF THE PERIOD. IT
PRODUCED A SUBFLARE LATE IN THE DAY. A 20-DEGREE FILAMENT, LAST SEEN
CENTERED AT S20W31, ERUPTED EARLY IN THE PERIOD. A CORONAL MASS
EJECTION FOLLOWED THE ERUPTION, BUT DID NOT APPEAR TO BE
EARTH-DIRECTED. NEW REGION 8700 (N12E81) WAS NUMBERED.
IB. Pronóstico de la actividad solar
SOLAR ACTIVITY IS EXPECTED TO BE AT
LOW TO MODERATE LEVELS. REGION 8699 MAY PRODUCE M-CLASS FLARES,
PARTICULARLY IF ITS PRESENT RATE OF GROWTH CONTINUES. THERE IS ALSO
A SLIGHT CHANCE FOR A MAJOR FLARE FROM THIS REGION.
IIA. Resumen de la actividad geofísica 11-2100Z a 12-2100Z
GEOMAGNETIC FIELD ACTIVITY INCREASED TO QUIET TO MINOR STORM LEVELS
WITH BRIEF MAJOR STORM PERIODS DETECTED AT HIGH LATITUDES. THE ACE
SPACECRAFT DETECTED AN INTERPLANETARY SHOCK PASSAGE AT L1 AT
12/0322Z FOLLOWED BY A SUDDEN IMPULSE AT EARTH AT 12/0400Z (21 NT,
AS MEASURED BY THE BOULDER USGS MAGNETOMETER). THIS ACTIVITY IS
LIKELY DUE TO A RECURRENT HIGH-SPEED CORONAL HOLE WIND STREAM.
IIB. Pronóstico de la actividad geofísica
GEOMAGNETIC FIELD ACTIVITY IS
EXPECTED TO RANGE FROM UNSETTLED TO MINOR STORM LEVELS THROUGH THE
PERIOD AS CORONAL HOLE EFFECTS CONTINUE. THE GREATER THAN 2 MEV
ELECTRON FLUX, CURRENTLY AT NORMAL LEVELS, IS EXPECTED TO INCREASE
TO HIGH LEVELS DURING THE PERIOD.
III. Probabilidades del evento 13 SEP a 15 SEP
| Clase M | 40% | 40% | 40% |
| Clase X | 10% | 10% | 10% |
| Protón | 10% | 10% | 10% |
| PCAF | GREEN | ||
IV. Penticton 10.7cm flujo
Observado 12 SEP 141 Previsto 13 SEP-15 SEP 150/155/160 Media de 90 Días 12 SEP 164
V. Índices Geomagnéticos A
OBSERVED AFR/AP 11 SEP 008/010 ESTIMATED AFR/AP 12 SEP 018/015 PREDICTED AFR/AP 13 SEP-15 SEP 018/013-018/015-018/015
VI. Probabilidades de Actividad Geomagnética 13 SEP a 15 SEP
| A. Latitudes Medias | |||
|---|---|---|---|
| Activo | 40% | 40% | 40% |
| Tormenta Menor | 15% | 15% | 15% |
| Tormenta Mayor-Severa | 05% | 05% | 05% |
| B. Latitudes Altas | |||
|---|---|---|---|
| Activo | 45% | 45% | 45% |
| Tormenta Menor | 20% | 20% | 20% |
| Tormenta Mayor-Severa | 06% | 06% | 06% |
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