Affichage des archives de dimanche, 23 août 1998
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 1998 Aug 23 2200 UTCFait par le NOAA © SWPC et adapté par SpaceWeatherLive.com
Rapport de l'USAF/NOAA sur l'activité solaire et géophysique
SDF numéro 235 publié à 2200Z le 23 AUG 1998IA. Analyse des régions solaires actives et activité du 22-2100Z au 23-2100Z SOLAR ACTIVITY WAS MODERATE. REGION 8307 (N31E22)
PRODUCED AN M2/1N FLARE AT 23/0934Z WITH A 2695 MHZ BURST OF 500
SFU. THIS REGION BEGAN A DECAY TREND DURING THE PERIOD. THE DELTA
CONFIGURATION REMAINED IN THE NORTHERN PORTION OF THE REGION BUT
OVERALL, THE MAGNETIC COMPLEXITY IS DECREASING. REGION 8310 (N24E33)
PRODUCED A C3/SF FLARE AT 23/1125Z.
IB. Prévisions d'activité solaire
SOLAR ACTIVITY IS EXPECTED TO BECOME
LOW TO MODERATE. CONTINUED DECAY AND SIMPLIFICATION IN REGION 8307
COULD RESULT IN A RAPID DECREASE OF FLARE PRODUCTION. ONLY
OCCASIONAL M-CLASS EVENTS ARE EXPECTED FOR THE NEXT THREE DAYS.
X-CLASS FLARES REMAIN SLIGHTLY POSSIBLE FROM THIS REGION THAT
PRODUCED A TOTAL OF 4 X-CLASS EVENTS EARLY IN ITS VISIBLE HEMISPHERE
TRANSIT.
IIA. Résumé de l'activité géophysique du 22-2100Z au 23-2100Z
THE GEOMAGNETIC FIELD WAS UNSETTLED AT MIDDLE LATITUDES AND UNSETTLED
TO MINOR STORM LEVELS AT HIGH LATITUDES. THE MOST DISTURBED PERIOD
WAS FROM 23/0000-0900Z. RECENT SOLAR WIND DATA SHOW AN INCREASE OF
SOLAR WIND VELOCITY TO NEAR 600 KM/S AND DECREASE OF DENSITY TO 2-3
P/CC. THESE PARAMETERS INDICATE THE EARTH IS EMBEDDED IN A CORONAL
HOLE STREAM. MAGNETIC DATA IMPLICATE THE EQUATORWARD EXTENSION OF
THE NORTHERN CORONAL HOLE AS THE SOURCE OF THIS STREAM. THE
ENERGETIC (GT 10 MEV) PROTON ENHANCEMENT THAT BEGAN ON 20 AUG
CONTINUED THROUGH THE PERIOD AT A FLUX OF APPROXIMATELY 2 PFU.
IIB. Prévision de l'activité géophysique
THE GEOMAGNETIC FIELD SHOULD
CONTINUE AT PREDOMINANTLY UNSETTLED TO ACTIVE LEVELS THROUGH 24 AUG.
MINOR STORM INTERVALS ARE POSSIBLE DURING THAT TIME. A SLIGHTLY MORE
INTENSE DISTURBANCE IS EXPECTED ON 25-26 AUG AS A RESULT OF THE M9
FLARE AND SUSPECTED CME OF 22 AUG. ACTIVE TO MINOR STORM LEVELS WITH
ISOLATED PERIODS OF MAJOR STORMING ARE POSSIBLE FOR THAT PERIOD. THE
PROTON ENHANCEMENT SHOULD DECAY SLOWLY OVER THE NEXT SEVERAL DAYS.
III. Probabilité d'éruption solaire du 24 AUG au 26 AUG
| Classe M | 55% | 55% | 55% |
| Classe X | 20% | 20% | 20% |
| Proton | 20% | 20% | 20% |
| PCAF | GREEN | ||
IV. Flux Penticton 10.7 cm
Observé 23 AUG 126 Prévisionnel 24 AUG-26 AUG 127/128/130 Moyenne des 90 derniers jours 23 AUG 116
V. Indice géomagnetique A
OBSERVED AFR/AP 22 AUG 013/023 ESTIMATED AFR/AP 23 AUG 015/020 PREDICTED AFR/AP 24 AUG-26 AUG 020/020-025/020-025/030
VI. Probabilités d'activité géomagnétique du 24 AUG au 26 AUG
| A. Latitudes moyennes | |||
|---|---|---|---|
| Actif | 40% | 30% | 30% |
| Tempête mineure | 20% | 30% | 30% |
| Tempête majeure/sévère | 05% | 15% | 15% |
| B. Hautes latitudes | |||
|---|---|---|---|
| Actif | 40% | 30% | 30% |
| Tempête mineure | 25% | 30% | 30% |
| Tempête majeure/sévère | 10% | 20% | 20% |
Dernières nouvelles
samedi, 23 mars 2024
X1.1 solar flare with earth-directed CME
mercredi, 20 mars 2024
Sunspot region 3615, G1 watch
jeudi, 22 février 2024
X6.3 solar flare
Forum
Unspecified geomagnetic activity 939Growth of Cycle 25 424GONG Farside Images added to the SWL site? 5Changelog/Featurelog 152Imagery from Total Solar Eclipse 08/04/2024 5
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 | 19/04/2024 | M1.0 |
| Dernier orage géomagnétique | 16/04/2024 | 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 |