Viewing archive of onsdag, 5 april 2000
Solaktivitetsrapport
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 för sol- och geofysisk aktivitet 2000 Apr 05 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 096 publicerat klockan 2200Z på 05 APR 2000IA. Analys av solfläcksgrupper och solaktivitet från 04-2100Z till 05-2100Z SOLAR ACTIVITY WAS LOW, ONLY C-CLASS FLARES WERE
OBSERVED. THERE ARE 14 SPOTTED REGIONS VISIBLE ON THE DISK, MOST
APPEAR STABLE OR DECLINING. REGION 8933 (N18W84) REMAINS
MAGNETICALLY COMPLEX AS IT BEGINS ITS WEST LIMB TRANSIT. SOHO
SPACECRAFT CORONAL IMAGES INDICATE THAT A CME, WHICH MAY BE
EARTH-DIRECTED, WAS ASSOCIATED WITH THE C9/2F FLARE FROM THIS REGION
ON 4 APRIL. REGION 8948 (S15E56) APPEARS TO BE A DAO SPOT GROUP
WITH AN EAST-WEST NEUTRAL LINE. REGIONS 8949 (S18E76) AND 8950
(N18W64) WERE NUMBERED TODAY.
IB. Prognos för solaktivitet
SOLAR ACTIVITY IS EXPECTED TO BE LOW
TO MODERATE.
IIA. Sammanfattning av geofysisk aktivitet 04-2100Z till 05-2100Z
THE GEOMAGNETIC FIELD WAS MOSTLY UNSETTLED TO ACTIVE. THE PROTON
EVENT WHICH STARTED AT 04/2055T PEAKED AT 55 PFU AT 05/0930UT AND
CONTINUES IN PROGRESS (CURRENT FLUX IS 20 PFU AT >10MEV). THE
ASSOCIATED PCA BEGAN AT 05/0653UT, REACHED MAXIMUM OF 2.2 DB AT
05/0950UT AND ENDED AT 05/1807UT.
IIB. Prognos för geofysisk aktivitet
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE QUIET TO UNSETTLED UNTIL 08 APRIL WHEN THE FIELD IS
EXPECTED TO BECOME ACTIVE WITH THE ARRIVAL OF THE DISTURBANCE FROM
THE CME ASSOCIATED WITH THE C9/2F FLARE AT 04/1541UT. THE SATELLITE
PROTON EVENT IS EXPECTED TO END IN THE NEXT 24 HOURS.
III. Chans för solutbrott från 06 APR till 08 APR
| M-klass | 50% | 50% | 50% |
| X-klass | 05% | 05% | 05% |
| Proton | 05% | 05% | 05% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observerad 05 APR 194 Prognoserat 06 APR-08 APR 190/185/180 90 Day Mean 05 APR 185
V. Geomagnetiskt A-index
OBSERVED AFR/AP 04 APR 023/021 ESTIMATED AFR/AP 05 APR 009/012 PREDICTED AFR/AP 06 APR-08 APR 008/010-008/010-025/025
VI. Chanser för geomagnetisk aktivitet från 06 APR till 08 APR
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 10% | 10% | 30% |
| Små stormförhållanden | 05% | 05% | 20% |
| Svåra stormförhållanden | 01% | 01% | 06% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 15% | 15% | 30% |
| Små stormförhållanden | 05% | 05% | 20% |
| Svåra stormförhållanden | 01% | 01% | 11% |
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