Visualització de l'arxiu de dimarts, 18 d’abril 2000
Informe d'activitat solar
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.
Informe d'activitat Geofísica-Solar 2000 Apr 18 2200 UTCPreparat pel SWPC NOAA © i processat per SpaceWeatherLive.com
Informe conjunt segons USAF / NOAA d’activitat Solar i Geofísica
SDF número 109 emès a 2200Z el APR 18 2000IA. Anàlisi de les regions actives solars i de l'activitat de 2100Z-17 a 2100Z-18 SOLAR ACTIVITY WAS LOW. REGION 8963 (N16E09) RAPIDLY
EMERGED AS THE PRIMARY FLARE PRODUCING REGION ON THE VISIBLE DISK
AND WAS RESPONSIBLE FOR THE THREE LARGEST EVENTS OF THE PERIOD. THE
FIRST AND LARGEST EVENT WAS A C7/SF AT 18/0805UT, FOLLOWED BY A C4
FLARE WITH A TYPE II SWEEP AT 18/1153UT, AND FINALLY A C4/SF AT
18/1415UT. ALL EVENTS WERE ACCOMPANIED BY MINOR CENTIMETRIC BURSTS.
THIS REGION, THOUGH QUITE ACTIVE, IS A RELATIVELY SMALL DAO GROUP
WITH 80 MILLIONTHS OF WHITE LIGHT AREA. REGION 8955 (S22W19) HAS
STABILIZED, PRODUCING ONLY OCCASIONAL MINOR C-CLASS FLARES. NEW
REGION 8966 (S13E65) WAS NUMBERED TODAY. REMAINING REGIONS WERE
QUIET.
IB. Previsió d'activitat solar
SOLAR ACTIVITY IS EXPECTED TO BE LOW.
REGIONS 8955 AND 8963 WILL LIKELY CONTINUE TO PRODUCE C-CLASS
ACTIVITY.
IIA. Resum d'activitat geofísica del 2100Z-17 al 2100Z-18
THE GEOMAGNETIC FIELD WAS MOSTLY QUIET WITH OCCASIONAL UNSETTLED
PERIODS.
IIB. Previsió d'activitat geofísica
THE GEOMAGNETIC FIELD IS
EXPECTED TO REMAIN AT QUIET TO UNSETTLED LEVELS.
III. Probabilitats d’esdeveniments de les APR del 19 a les APR del 21
| Classe M | 35% | 35% | 35% |
| Classe X | 05% | 05% | 05% |
| Protó | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton Flux de 10,7 cm
Observat 18 APR 160 Predit 19 APR-21 APR 160/165/170 Mitjana de 90 dies 18 APR 183
V. Índexs geomagnètics A
OBSERVED AFR/AP 17 APR 011/014 ESTIMATED AFR/AP 18 APR 006/010 PREDICTED AFR/AP 19 APR-21 APR 008/012-010/015-005/008
VI. Probabilitats d’activitat geomagnètica del 19 APR al 21 APR
| A. Latituds mitjanes | |||
|---|---|---|---|
| Actiu | 25% | 25% | 20% |
| Tempesta menor | 10% | 10% | 05% |
| Tempesta major-severa | 01% | 01% | 01% |
| B. Latituds altes | |||
|---|---|---|---|
| Actiu | 30% | 35% | 25% |
| Tempesta menor | 20% | 25% | 15% |
| Tempesta major-severa | 05% | 05% | 01% |
All times in UTC
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Fets del temps al espai
| Última Flamarada-X | 2024/05/31 | X1.1 |
| Última Flamarada-M | 2024/05/31 | M1.0 |
| Última tempesta geomagnètica | 2024/05/17 | Kp6 (G2) |
| Dies sense taques | |
|---|---|
| Últim dia sense taques | 2022/06/08 |
| Número mensual mitjà de taques solars | |
|---|---|
| d’abril 2024 | 136.5 +31.6 |
| Last 30 days | 147.7 +4.8 |