Viendo archivo del martes, 17 agosto 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 Aug 17 2200 UTCPreparado por NOAA © SWPC y procesado por SpaceWeatherLive.com
Informe conjunto USAF/NOAA de actividad Solar y Geofísica
SDF Número 229 Publicado el 2200Z a las 17 AUG 1999IA. Análisis de regiones solares activas y de actividad desde 16-2100Z hasta 17-2100Z SOLAR ACTIVITY WAS LOW. REGION 8668 (N21E28), THE MOST
PROMINENT ON THE DISK, HAD TWO LONG-DURATION C-CLASS FLARES. THE
FIRST, A C2/SF AT 1323Z, LASTED NEARLY 90 MINUTES. THIS EVENT WAS
FOLLOWED SOON AFTER BY A C5/SF AT 1602Z THAT ENDURED FOR NEARLY
THREE AND ONE HALF HOURS. BOTH OF THESE EVENTS WERE RICH IN DISCRETE
RADIO BURSTS ACROSS THE SPECTRUM. REGION 8662 (S16W90) IS SURGING AS
IT TRANSITS THE LIMB.
IB. Pronóstico de la actividad solar
SOLAR ACTIVITY IS EXPECTED TO BE LOW.
REGION 8668 SHOULD CONTINUE TO PRODUCE C-CLASS FLARES. IF ADDITIONAL
GROWTH OCCURS THERE, M-CLASS EVENTS MAY EVENTUATE.
IIA. Resumen de la actividad geofísica 16-2100Z a 17-2100Z
THE GEOMAGNETIC FIELD WAS AT ACTIVE TO MINOR STORM LEVELS THROUGHOUT
THE PERIOD. A HIGH SPEED SOLAR WIND STREAM, REGISTERING BETWEEN 500
AND 700 KM/S, CONTINUES TO BUFFET THE MAGNETOPAUSE. THE FLUX OF
GREATER THAN 2 MEV ELECTRONS AT GEOSYNCHRONOUS ORBIT REACHED HIGH
LEVELS FROM APPROXIMATELY 1500 TO 1800Z.
IIB. Pronóstico de la actividad geofísica
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE UNSETTLED TO ACTIVE DURING THE NEXT 24 HOURS AS THE
EFFECT OF THE HIGH SPEED STREAM ABATES. CONDITIONS SHOULD CALM EVEN
FURTHER THEREAFTER, WITH STRICTLY UNSETTLED CONDITIONS PREVALENT BY
THE END OF THE INTERVAL.
III. Probabilidades del evento 18 AUG a 20 AUG
| Clase M | 15% | 15% | 15% |
| Clase X | 01% | 01% | 01% |
| Protón | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7cm flujo
Observado 17 AUG 141 Previsto 18 AUG-20 AUG 150/155/165 Media de 90 Días 17 AUG 163
V. Índices Geomagnéticos A
OBSERVED AFR/AP 16 AUG 025/029 ESTIMATED AFR/AP 17 AUG 025/035 PREDICTED AFR/AP 18 AUG-20 AUG 015/017-010/012-010/008
VI. Probabilidades de Actividad Geomagnética 18 AUG a 20 AUG
| A. Latitudes Medias | |||
|---|---|---|---|
| Activo | 35% | 25% | 20% |
| Tormenta Menor | 10% | 05% | 05% |
| Tormenta Mayor-Severa | 01% | 01% | 01% |
| B. Latitudes Altas | |||
|---|---|---|---|
| Activo | 45% | 30% | 25% |
| Tormenta Menor | 10% | 10% | 10% |
| Tormenta Mayor-Severa | 01% | 01% | 01% |
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