Affichage des archives de jeudi, 23 avril 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 Apr 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 113 publié à 2200Z le 23 APR 1998IA. Analyse des régions solaires actives et activité du 22-2100Z au 23-2100Z SOLAR ACTIVITY WAS HIGH. AN OPTICALLY UNCORRELATED X1
X-RAY BURST WAS DETECTED AT 23/0555Z. THIS ACTIVITY WAS ASSOCIATED
WITH A LARGE CORONAL MASS EJECTED OFF THE SE-NE LIMB NOTED BY
SPACE-BASED SENSORS. FURTHER ANALYSIS INDICATED THE FOOT POINTS OF
THE EJECTION APPEARED TO BE LOCATED NEAR RETURNING REGIONS 8190
(S21,L144) AND 8196 (N18,L144). BOTH REGIONS ARE LESS THAN A DAY
BEHIND THE EAST LIMB. THE X-RAY BURST WAS ACCOMPANIED BY A 10.7CM
RADIO BURST OF 430 SFU, MAKING IT A TENFLARE, AND A TYPE IV SWEEP.
POST FLARE LOOPS WERE OBSERVED AS WELL. NEW SWO REGION 8209
(S22W06), A SMALL AXX GROUP, WAS NUMBERED TODAY.
IB. Prévisions d'activité solaire
SOLAR ACTIVITY IS EXPECTED TO BE LOW
TO MODERATE. AN INCREASE IN ACTIVITY IS EXPECTED WITH THE RETURN OF
REGION 8190, ESPECIALLY IN LIGHT OF TODAY'S ACTIVITY.
IIA. Résumé de l'activité géophysique du 22-2100Z au 23-2100Z
THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED. A SHOCK WAS NOTED ON
ALL INSTRUMENTS AT ABOUT 23/1800Z, INDICATED BY AN INCREASE IN SOLAR
WIND DENSITY AND SPEED, AN INCREASE IN PARTICLES DETECTED ON ACE AND
GOES, AND A SMALL IMPULSE NOTED EARTH-BASED AND GEOSYNCHRONOUS
MAGNETOMETERS. THE GREATER THAN 10 MEV PROTON EVENT IS STILL IN
PROGRESS. THE EVENT CONTINUES TO DIMINISH AND IS CURRENTLY AT 30
PFU.
IIB. Prévision de l'activité géophysique
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE MOSTLY UNSETTLED FOR THE NEXT 24 HOURS AT MID
LATITUDES AND UNSETTLED TO ACTIVE FOR THE NEXT 48 HOURS AT HIGH
LATITUDES. THEREAFTER, THE FIELD IS EXPECTED TO BE QUIET TO
UNSETTLED.
III. Probabilité d'éruption solaire du 24 APR au 26 APR
| Classe M | 15% | 15% | 15% |
| Classe X | 10% | 10% | 10% |
| Proton | 05% | 05% | 05% |
| PCAF | IN PROGRESS | ||
IV. Flux Penticton 10.7 cm
Observé 23 APR 090 Prévisionnel 24 APR-26 APR 092/094/094 Moyenne des 90 derniers jours 23 APR 104
V. Indice géomagnetique A
OBSERVED AFR/AP 22 APR 005/006 ESTIMATED AFR/AP 23 APR 009/015 PREDICTED AFR/AP 24 APR-26 APR 015/020-010/015-010/012
VI. Probabilités d'activité géomagnétique du 24 APR au 26 APR
| A. Latitudes moyennes | |||
|---|---|---|---|
| Actif | 20% | 15% | 10% |
| Tempête mineure | 10% | 05% | 05% |
| Tempête majeure/sévère | 05% | 05% | 05% |
| B. Hautes latitudes | |||
|---|---|---|---|
| Actif | 20% | 15% | 10% |
| Tempête mineure | 15% | 10% | 10% |
| Tempête majeure/sévère | 05% | 05% | 05% |
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
Unproven theories 344AR3654 25Unspecified geomagnetic activity 954Changelog/Featurelog 154What are these long and thin eruptions? 9
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 | 27/04/2024 | M3.0 |
| 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 | 139.7 +33.3 |