Affichage des archives de lundi, 24 mai 2004
Rapport d'activité solaire
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 d'activité solaire et géophysique 2004 May 24 2200 UTCFait par le NOAA © SWPC et adapté par SpaceWeatherLive.com
Rapport de l'USAF/NOAA sur l'activité solaire et géophysique
SDF numéro 145 publié à 2200Z le 24 May 2004IA. Analyse des régions solaires actives et activité du 23-2100Z au 24-2100Z Solar activity was at low levels today. Region 618
(S10E13) produced the largest flare of the period, a C4 x-ray event
that occurred at 24/1104Z. There was a continued growth in sunspot
area and the total spot count today. A continued emergence of flux
now shows several delta structures near region center in this
magnetic beta-gamma-delta group. The remaining active regions were
quiescent today. No new regions were numbered today.
IB. Prévisions d'activité solaire
Solar activity is expected to be at
low to moderate levels. Due to continued growth in magnetic
complexity, Region 618 has the potential of producing M-class flare
activity.
IIA. Résumé de l'activité géophysique du 23-2100Z au 24-2100Z
The geomagnetic field ranged from quiet to active levels. The high
speed solar wind stream continues to persist while solar wind speeds
were exceeding 500 km/s late in the period.
IIB. Prévision de l'activité géophysique
The geomagnetic field is
expected to be at predominantly quiet to unsettled levels. Isolated
active conditions are possible through 25 May as the geoeffective
high speed coronal hole stream begins to wane. NOTE: The ACE
spacecraft orbit will bring ACE nearly in line with the Sun from
about May 30 to June 2, 2004. During that time solar radio noise is
expected to interfere with spacecraft telemetry resulting in the
loss of solar wind plasma, magnetic field, and particle data.
III. Probabilité d'éruption solaire du 25 May au 27 May
| Classe M | 50% | 50% | 50% |
| Classe X | 10% | 10% | 10% |
| Proton | 05% | 05% | 05% |
| PCAF | green | ||
IV. Flux Penticton 10.7 cm
Observé 24 May 105 Prévisionnel 25 May-27 May 105/105/100 Moyenne des 90 derniers jours 24 May 105
V. Indice géomagnetique A
Observé Afr/Ap 23 May 009/012 Estimé Afr/Ap 24 May 012/015 Prévisionnel Afr/Ap 25 May-27 May 007/010-007/010-010/010
VI. Probabilités d'activité géomagnétique du 25 May au 27 May
| A. Latitudes moyennes | |||
|---|---|---|---|
| Actif | 15% | 15% | 20% |
| Tempête mineure | 05% | 05% | 10% |
| Tempête majeure/sévère | 05% | 05% | 05% |
| B. Hautes latitudes | |||
|---|---|---|---|
| Actif | 20% | 20% | 20% |
| Tempête mineure | 10% | 10% | 10% |
| Tempête majeure/sévère | 05% | 05% | 05% |
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