Affichage des archives de vendredi, 8 juillet 2005
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 2005 Jul 08 2210 UTC# Prepared jointly by the U.S. Dept. of Commerce, NOAA, #Space Environment Center and the U.S. Air Force. #
Rapport de l'USAF/NOAA sur l'activité solaire et géophysique
SDF numéro 189 publié à 2200Z le 08 Jul 2005IA. Analyse des régions solaires actives et activité du 07-2100Z au 08-2100Z Solar activity was low. Region 786 (N12W17) produced a
long duration C1.6 event at 08/1618 UTC. There was also a reported
Type IV radio sweep which may be associated with this flare. The
event was optically correlated with the GOES solar x-ray imager
data. Region 786 continues to be the largest group on the disk and
exhibits a magnetic delta configuration. A CME is currently
observed in the LASCO imagery at 08/1922 UTC. Limited data at this
time does not allow for a complete analysis of the source for this
activity. The main trajectory seems to be off the west limb.
IB. Prévisions d'activité solaire
Solar activity is expected to be low
to moderate. Region 786 remains a likely source for an isolated
M-class event.
IIA. Résumé de l'activité géophysique du 07-2100Z au 08-2100Z
The geomagnetic field was quiet to unsettled.
IIB. Prévision de l'activité géophysique
The geomagnetic field is
expected to be at unsettled to active levels with isolated periods
of minor storm conditions for 09-10 July. The increased levels of
activity are expected due to effects from the observed CME's between
05-07 July, and the possible influence from a coronal hole high
speed stream. Quiet to unsettled conditions are expected for 11
July.
III. Probabilité d'éruption solaire du 09 Jul au 11 Jul
| Classe M | 50% | 50% | 50% |
| Classe X | 15% | 15% | 15% |
| Proton | 05% | 05% | 05% |
| PCAF | green | ||
IV. Flux Penticton 10.7 cm
Observé 08 Jul 110 Prévisionnel 09 Jul-11 Jul 110/105/105 Moyenne des 90 derniers jours 08 Jul 097
V. Indice géomagnetique A
Observé Afr/Ap 07 Jul 006/008 Estimé Afr/Ap 08 Jul 006/015 Prévisionnel Afr/Ap 09 Jul-11 Jul 020/030-020/025-015/015
VI. Probabilités d'activité géomagnétique du 09 Jul au 11 Jul
| A. Latitudes moyennes | |||
|---|---|---|---|
| Actif | 35% | 35% | 25% |
| Tempête mineure | 15% | 15% | 10% |
| Tempête majeure/sévère | 10% | 10% | 05% |
| B. Hautes latitudes | |||
|---|---|---|---|
| Actif | 45% | 40% | 30% |
| Tempête mineure | 25% | 20% | 15% |
| Tempête majeure/sévère | 10% | 10% | 10% |
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