Viendo archivo del viernes, 30 abril 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 Apr 30 2200 UTCPreparado por NOAA © SWPC y procesado por SpaceWeatherLive.com
Informe conjunto USAF/NOAA de actividad Solar y Geofísica
SDF Número 120 Publicado el 2200Z a las 30 APR 1999IA. Análisis de regiones solares activas y de actividad desde 29-2100Z hasta 30-2100Z SOLAR ACTIVITY WAS LOW. CONTINUING DEVELOPMENT IN
REGION 8524 (N21W28) RESULTED IN ITS MERGER WITH NEARBY REGION 8522,
FORMING ONE LARGE BIPOLE. REGION 8524 PRODUCED A NUMBER OF C-CLASS
EVENTS, THE LARGEST BEING A C8/1F FLARE AT 1221Z. ONE NEW REGION,
8527 (N27E68), ROTATED FULLY INTO VIEW NEAR EAST LIMB, WHERE ANOTHER
REGION MAY BE SOON TO APPEAR NEAR S10. REGION 8525 (N16E59),
ALTHOUGH QUIET, HAS PATCHES OF BRIGHT PLAGE.
IB. Pronóstico de la actividad solar
SOLAR ACTIVITY IS EXPECTED TO BE LOW
TO MODERATE. REGION 8524 IS THE MOST PROMISING SITE OF M-CLASS
ACTIVITY. REGION 8525 MAY ALSO CONTRIBUTE SHOULD FURTHER DEVELOPMENT
OCCUR.
IIA. Resumen de la actividad geofísica 29-2100Z a 30-2100Z
THE GEOMAGNETIC FIELD WAS GENERALLY ACTIVE. A HIGH SPEED SOLAR WIND
STREAM, AT TIMES REACHING MORE THAN 650 KM/S AT THE ACE SPACECRAFT,
DROVE THE FIELD TO EPISODES OF MINOR STORM ACTIVITY DURING THE
PERIOD. THE GREATER THAN 2 MEV ELECTRON FLUX AT GEOSYNCHRONOUS ORBIT
ATTAINED HIGH LEVELS FROM ABOUT 1300 TO 2100Z.
IIB. Pronóstico de la actividad geofísica
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE AT ACTIVE TO MINOR STORM LEVELS FOR THE NEXT THREE
DAYS. THE HIGH SPEED STREAM SHOULD ABATE BY THE LATTER PART OF THE
PERIOD. A CME, RELATED TO YESTERDAY'S M1 EVENT, MAY IMPACT THE FIELD
AT THE END OF THE FORECAST INTERVAL.
III. Probabilidades del evento 01 MAY a 03 MAY
| Clase M | 30% | 30% | 30% |
| Clase X | 05% | 05% | 05% |
| Protón | 05% | 05% | 05% |
| PCAF | GREEN | ||
IV. Penticton 10.7cm flujo
Observado 30 APR 124 Previsto 01 MAY-03 MAY 130/135/140 Media de 90 Días 30 APR 128
V. Índices Geomagnéticos A
OBSERVED AFR/AP 29 APR 018/019 ESTIMATED AFR/AP 30 APR 023/025 PREDICTED AFR/AP 01 MAY-03 MAY 015/030-015/030-015/025
VI. Probabilidades de Actividad Geomagnética 01 MAY a 03 MAY
| A. Latitudes Medias | |||
|---|---|---|---|
| Activo | 30% | 30% | 30% |
| Tormenta Menor | 10% | 10% | 10% |
| Tormenta Mayor-Severa | 01% | 01% | 01% |
| B. Latitudes Altas | |||
|---|---|---|---|
| Activo | 40% | 40% | 40% |
| Tormenta Menor | 15% | 15% | 15% |
| Tormenta Mayor-Severa | 01% | 01% | 01% |
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