Viewing archive of tisdag, 6 april 1999
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 1999 Apr 06 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 06 APR 1999IA. Analys av solfläcksgrupper och solaktivitet från 05-2100Z till 06-2100Z SOLAR ACTIVITY WAS LOW. REGION 8508 (N19E37) PRODUCED A
C3/SF AT 06/0705Z AND REGION 8506 (S26W410) GENERATED A C3/SF AT
05/2309Z. SOME AREAS OF MAGNETIC COMPLEXITY WERE VISIBLE IN BOTH
REGIONS BUT OVERALL THESE REGIONS WERE STABLE.
IB. Prognos för solaktivitet
SOLAR ACTIVITY SHOULD REMAIN
PREDOMINANTLY LOW FOR THE NEXT THREE DAYS. ISOLATED M-CLASS EVENTS
ARE POSSIBLE FROM REGIONS 8506 AND 8508.
IIA. Sammanfattning av geofysisk aktivitet 05-2100Z till 06-2100Z
THE GEOMAGNETIC FIELD WAS PREDOMINANTLY QUIET WITH THE EXCEPTION OF
THE 06/0000-0600Z PERIOD WHEN UNSETTLED TO ACTIVE CONDITIONS
OCCURRED. ENERGETIC ELECTRON FLUXES AT GEOSYNCHRONOUS ORBIT WERE
HIGH DURING THE PERIOD.
IIB. Prognos för geofysisk aktivitet
THE GEOMAGNETIC FIELD SHOULD
REMAIN QUIET UNTIL LATE ON 07 APR. THEN A WEAK, CME RELATED,
DISTURBANCE IS EXPECTED TO BEGIN. A HALO-APPEARING CME OCCURRED AT
THE SUN ON 04 APR. HOWEVER, IT IS BELIEVED THIS CME ACTUALLY
CONSISTED OF TWO SEPARATE EJECTIONS FROM THE NORTHWEST AND SOUTHEAST
LIMBS. IT IS NOT EXPECTED THAT THE EARTH WILL RECEIVE A DIRECT BLOW
BY THESE EJECTIONS. ACTIVE GEOMAGNETIC PERIODS ARE PROBABLE DURING
THE 08-09 APR TIME PERIOD.
III. Chans för solutbrott från 07 APR till 09 APR
| M-klass | 30% | 30% | 30% |
| X-klass | 05% | 05% | 05% |
| Proton | 05% | 05% | 05% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observerad 06 APR 137 Prognoserat 07 APR-09 APR 140/142/144 90 Day Mean 06 APR 134
V. Geomagnetiskt A-index
OBSERVED AFR/AP 05 APR 009/011 ESTIMATED AFR/AP 06 APR 008/008 PREDICTED AFR/AP 07 APR-09 APR 012/015-015/015-010/010
VI. Chanser för geomagnetisk aktivitet från 07 APR till 09 APR
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 30% | 30% | 20% |
| Små stormförhållanden | 20% | 20% | 10% |
| Svåra stormförhållanden | 10% | 10% | 05% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 30% | 30% | 20% |
| Små stormförhållanden | 20% | 20% | 10% |
| Svåra stormförhållanden | 10% | 10% | 05% |
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