Affichage des archives de jeudi, 8 juin 2000
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 2000 Jun 08 2200 UTCFait par le NOAA © SWPC et adapté par SpaceWeatherLive.com
Rapport de l'USAF/NOAA sur l'activité solaire et géophysique
SDF numéro 160 publié à 2200Z le 08 JUN 2000IA. Analyse des régions solaires actives et activité du 07-2100Z au 08-2100Z SOLAR ACTIVITY WAS LOW. NUMEROUS MINOR C-CLASS X-RAY
EVENTS OCCURRED. TWO EVENTS WERE OPTICALLY CORRELATED WITH REGION
9026 (N21W17). ONLY ONE C1/SF EVENT WAS OPTICALLY CORRELATED WITH
REGION 9033 (N22E42) AT 08/1811Z. REGION 9026 SHOWED A MODERATE
INCREASE IN THE NUMBER OF SPOTS WHILE THE AREA SLIGHTLY DECREASED,
AND THE MAGNETIC CONFIGURATION OF THE REGION BECAME BETA GAMMA.
OVERALL, IT APPEARS 9026 IS STARTING TO DECAY. SIGNIFICANT GROWTH
WAS OBSERVED IN REGION 9033. NEW REGIONS 9035 (S17E15) AND 9036
(S23E73) WERE NUMBERED TODAY.
IB. Prévisions d'activité solaire
SOLAR ACTIVITY IS EXPECTED TO BE
MODERATE TO HIGH. REGION 9026 AND 9033 ARE EACH CAPABLE OF
PRODUCING M-CLASS AND ISOLATED X-CLASS EVENTS.
IIA. Résumé de l'activité géophysique du 07-2100Z au 08-2100Z
THE GEOMAGNETIC FIELD WAS UNSETTLED TO SEVERE STORM. A SUDDEN
IMPULSE OCCURRED AT 08/0909Z (77 NT, AS MEASURED BY THE BOULDER USGS
MAGNETOMETER). THE SOLAR WIND VELOCITY JUMPED FROM 520 TO OVER 800
KM/S AT 08/0841Z. MINOR TO SEVERE STORM LEVELS WERE OBSERVED
FOLLOWING THE SHOCK ARRIVAL. THIS SHOCK IS PRESUMED TO BE RELATED
TO THE X2/3B EVENT ON 06 JUNE. THE GREATER THAN 10 MEV PROTON FLUX
AT GEOSYNCHRONOUS ORBIT PEAKED AT 84 PFU'S AT 08/0940Z AND IS
DECREASING AT THIS TIME. A MODERATE (7.4 PERCENT) FORBUSH DECREASE
PEAKED NEAR 08/1449Z. A MAGNETOPAUSE CROSSING WAS OBSERVED ON
GOES-8 (W075) BEGAN AT 08/1510Z AND CONTINUED UNTIL APPROXIMATELY
08/1615Z.
IIB. Prévision de l'activité géophysique
THE GEOMAGNETIC FIELD IS
EXPECTED TO RANGE FROM ACTIVE TO SEVERE STORM LEVELS DURING THE
FIRST DAY. GEOMAGNETIC STORMING SHOULD START TO DIMINISH DURING THE
MIDDLE OF THE PERIOD. CONDITIONS BY THE THIRD DAY ARE EXPECTED TO
BE QUIET TO UNSETTLED WITH ISOLATED PERIODS OF ACTIVE CONDITIONS.
HOWEVER, UNSETTLED TO MINOR STORM CONDITIONS MAY PERSIST DURING THE
LATER PART OF THE PERIOD IF MODERATE EFFECTS ARE OBSERVED FROM THE
X1/3B EVENT ON 7 JUNE.
III. Probabilité d'éruption solaire du 09 JUN au 11 JUN
| Classe M | 70% | 70% | 60% |
| Classe X | 25% | 15% | 15% |
| Proton | 10% | 10% | 10% |
| PCAF | YELLOW | ||
IV. Flux Penticton 10.7 cm
Observé 08 JUN 175 Prévisionnel 09 JUN-11 JUN 185/190/200 Moyenne des 90 derniers jours 08 JUN 188
V. Indice géomagnetique A
OBSERVED AFR/AP 07 JUN 013/014 ESTIMATED AFR/AP 08 JUN 035/055 PREDICTED AFR/AP 09 JUN-11 JUN 060/075-025/040-015/025
VI. Probabilités d'activité géomagnétique du 09 JUN au 11 JUN
| A. Latitudes moyennes | |||
|---|---|---|---|
| Actif | 30% | 40% | 30% |
| Tempête mineure | 40% | 25% | 15% |
| Tempête majeure/sévère | 25% | 15% | 05% |
| B. Hautes latitudes | |||
|---|---|---|---|
| Actif | 10% | 50% | 40% |
| Tempête mineure | 60% | 30% | 20% |
| Tempête majeure/sévère | 30% | 20% | 10% |
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