Affichage des archives de lundi, 9 février 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 Feb 09 2200 UTCFait par le NOAA © SWPC et adapté par SpaceWeatherLive.com
Rapport de l'USAF/NOAA sur l'activité solaire et géophysique
SDF numéro 040 publié à 2200Z le 09 Feb 2004IA. Analyse des régions solaires actives et activité du 08-2100Z au 09-2100Z Solar activity decreased to low levels today. Region
554 (S08E52) produced numerous B and C-class flares today. Ten
C-class flares were recorded with the largest being a C9 x-ray event
that occurred at 09/1102Z. LASCO imagery has shown little, if any
associated CME signatures during the past 24 hours of activity from
this region. Magnetic analysis depicts a delta configuration within
the dominant intermediate spot. Region 551 (S06W27) did not manage
any flare production during the interval, although surging and point
brightenings were observed throughout the period. The gamma
structures in the central and trailing portions of the sunspot group
remain intact. Region 555 (S14E72) was numbered today.
IB. Prévisions d'activité solaire
Solar activity is expected to be at
low to moderate levels. Regions 551 and 554 both have the potential
to produce M-class flare activity.
IIA. Résumé de l'activité géophysique du 08-2100Z au 09-2100Z
The geomagnetic field was at quiet to unsettled levels. The greater
than 2 MeV electron fluxes at geosynchronous orbit reached high
levels today.
IIB. Prévision de l'activité géophysique
The geomagnetic field is
expected to be at quiet to unsettled levels. 12 February may
experience active conditions due to a solar sector boundary
crossing, preceding an anticipated recurrent high speed coronal hole
stream.
III. Probabilité d'éruption solaire du 10 Feb au 12 Feb
| Classe M | 50% | 50% | 50% |
| Classe X | 15% | 15% | 15% |
| Proton | 05% | 05% | 05% |
| PCAF | green | ||
IV. Flux Penticton 10.7 cm
Observé 09 Feb 118 Prévisionnel 10 Feb-12 Feb 120/120/115 Moyenne des 90 derniers jours 09 Feb 121
V. Indice géomagnetique A
Observé Afr/Ap 08 Feb 002/008 Estimé Afr/Ap 09 Feb 004/009 Prévisionnel Afr/Ap 10 Feb-12 Feb 006/010-008/012-012/015
VI. Probabilités d'activité géomagnétique du 10 Feb au 12 Feb
| A. Latitudes moyennes | |||
|---|---|---|---|
| Actif | 10% | 15% | 20% |
| Tempête mineure | 05% | 05% | 10% |
| Tempête majeure/sévère | 01% | 01% | 05% |
| B. Hautes latitudes | |||
|---|---|---|---|
| Actif | 15% | 20% | 30% |
| Tempête mineure | 05% | 10% | 15% |
| Tempête majeure/sévère | 01% | 05% | 05% |
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