Affichage des archives de dimanche, 30 septembre 2001
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 2001 Sep 30 2200 UTCFait par le NOAA © SWPC et adapté par SpaceWeatherLive.com
Rapport de l'USAF/NOAA sur l'activité solaire et géophysique
SDF numéro 273 publié à 2200Z le 30 Sep 2001IA. Analyse des régions solaires actives et activité du 29-2100Z au 30-2100Z Solar activity remained at moderate levels. Region 9628
(S17W76) produced a long-duration M1/Sf flare at 30/1141 UTC
associated with minor discrete frequency radio emission. Region 9628
may have decayed a bit as it approached the west limb, but remained
large and complex. Decay was also noted in Region 9632 (S18W61) as
its large interior spot mass began to split, which may have
dissipated the magnetic delta structure contained therein.
Nonetheless, this region remained large and complex. Region 9636
(N14W15), a reverse-polarity sunspot group, showed gradual
development during the day. It was moderate in size and complexity
as it produced isolated subflares, none of which were associated
with significant X-ray or radio emission.
IB. Prévisions d'activité solaire
Solar activity is expected to remain
at moderate levels. Isolated M-class flares will be possible from
Regions 9628, 9632, and 9636. Regions 9628 and 9632 each could
produce an isolated major flare before they rotate out of view on 01
and 02 October, respectively.
IIA. Résumé de l'activité géophysique du 29-2100Z au 30-2100Z
Geomagnetic field activity ranged from quiet to minor storm levels.
Minor storm levels occurred globally during 29/2100 - 2400 UTC
following a sustained period of southward IMF Bz (as measured by
NASA's ACE spacecraft). Activity decreased to quiet to unsettled
levels during 30/0000 - 1500 UTC, then increased to active levels
for the rest of the period. An interplanetary shock passed the ACE
spacecraft at 30/1848 UTC. The source for this shock may have been a
CME that followed a long-duration M3/2n flare from Region 9636 at
28/0830 UTC. The greater than 10 MeV event that began at 24/1215 UTC
ended at 30/1710 UTC.
IIB. Prévision de l'activité géophysique
Active geomagnetic conditions
will be possible during 01 - 02 October due to recent CME activity.
Field activity is expected to decrease to quiet to unsettled levels
on 03 October. There will be a slight chance for a proton flare from
Region 9628 or 9632 during the period.
III. Probabilité d'éruption solaire du 01 Oct au 03 Oct
| Classe M | 80% | 75% | 70% |
| Classe X | 25% | 20% | 10% |
| Proton | 20% | 15% | 10% |
| PCAF | yellow | ||
IV. Flux Penticton 10.7 cm
Observé 30 Sep 236 Prévisionnel 01 Oct-03 Oct 230/225/225 Moyenne des 90 derniers jours 30 Sep 176
V. Indice géomagnetique A
Observé Afr/Ap 29 Sep 019/021 Estimé Afr/Ap 30 Sep 012/012 Prévisionnel Afr/Ap 01 Oct-03 Oct 020/015-015/012-012/012
VI. Probabilités d'activité géomagnétique du 01 Oct au 03 Oct
| A. Latitudes moyennes | |||
|---|---|---|---|
| Actif | 40% | 40% | 30% |
| Tempête mineure | 20% | 20% | 10% |
| Tempête majeure/sévère | 10% | 10% | 01% |
| B. Hautes latitudes | |||
|---|---|---|---|
| Actif | 50% | 50% | 35% |
| Tempête mineure | 25% | 25% | 15% |
| Tempête majeure/sévère | 15% | 15% | 01% |
Dernières nouvelles
lundi, 22 avril 2024
Lot's of sunspots! Big chance for major flare activity?
samedi, 23 mars 2024
X1.1 solar flare with earth-directed CME
mercredi, 20 mars 2024
Sunspot region 3615, G1 watch
Forum
AR3654 28Unproven theories 348Growth of Cycle 25 435Unspecified geomagnetic activity 954Changelog/Featurelog 154
Plus de messages du forumAidez SpaceWeatherLive.com !
Vous êtes de plus en plus nombreux à consulter SpaceWeatherLive pour suivre l'activité solaire ou aurorale, et avec le traffic les coûts du serveur augmentent. Si vous appréciez SpaceWeatherLive, soutenez notre projet en faisant un don afin que nous puissions continuer à vous informer !
La Météo Spatiale en faits
| Dernière classe X | 28/03/2024 | X1.1 |
| Dernière classe M | 29/04/2024 | M3.6 |
| Dernier orage géomagnétique | 26/04/2024 | Kp5+ (G1) |
| Jours sans taches solaires | |
|---|---|
| Dernier jour sans taches solaires | 08/06/2022 |
| Nombre mensuel moyen de taches solaires | |
|---|---|
| mars 2024 | 104.9 -19.8 |
| Last 30 days | 139 +32.6 |