Viewing archive of fredag, 24 april 1998
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 1998 Apr 24 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 114 publicerat klockan 2200Z på 24 APR 1998IA. Analys av solfläcksgrupper och solaktivitet från 23-2100Z till 24-2100Z SOLAR ACTIVITY WAS LOW. AN UNCORRELATED C8 X-RAY BURST
WAS DETECTED AT 24/0852Z. THIS MAY HAVE BEEN ASSOCIATED WITH AN
ERUPTIVE PROMINENCE ON THE SE LIMB AT S34 WHICH BEGAN AT 24/0450Z.
THIS EPL ENDED AT 24/0940Z. THE REMAINDER OF THE VISIBLE DISK WAS
QUIET. NEW REGION 8210 (S19E70) WAS NUMBERED TODAY. THIS REGION WAS
THE SITE OF YESTERDAY'S CME ASSOCIATED WITH AN X1 FLARE, A LOOP
PROMINENCE SYSTEM AND NUMEROUS POINT BRIGHTENINGS. THE REGION
CONTAINS ONLY BRIGHT PLAGE AND ACTIVE SURGING AT THIS TIME, BUT
PRELIMINARY REPORTS OF SPOTS WERE RECEIVED LATE IN THE PERIOD.
IB. Prognos för solaktivitet
SOLAR ACTIVITY IS EXPECTED TO BE LOW
TO MODERATE AS REGION 8210 ROTATES ONTO THE VISIBLE DISK. THIS
REGION IS EXPECTED TO PRODUCE C-CLASS AND M-CLASS ACTIVITY DURING
ITS TRANSIT OF THE DISK, AS WELL AS ISOLATED X-CLASS ACTIVITY.
IIA. Sammanfattning av geofysisk aktivitet 23-2100Z till 24-2100Z
THE GEOMAGNETIC FIELD WAS QUIET TO MINOR STORM. ACTIVE TO MINOR STORM
CONDITIONS SET IN ABOUT 23/1900Z WITH THE ARRIVAL OF A SHOCK
RESULTING FROM THE CME REPORTED ON 21 APRIL. THIS ACTIVITY LASTED
UNTIL 24/1500Z WHEN THE FIELD FINALLY SETTLED DOWN. THE GREATER THAN
10 MEV PROTON EVENT ENDED AT 24/1550Z.
IIB. Prognos för geofysisk aktivitet
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE UNSETTLED TO ACTIVE FOR THE NEXT 18 HOURS, THEN QUIET
TO UNSETTLED FOR THE REMAINDER OF THE FORECAST PERIOD. HIGH LATITUDE
STATIONS MAY STILL EXPERIENCE ISOLATED PERIODS OF ACTIVE TO MINOR
STORM CONDITIONS FOR THE NEXT 18 HOURS.
III. Chans för solutbrott från 25 APR till 27 APR
| M-klass | 15% | 25% | 25% |
| X-klass | 10% | 10% | 10% |
| Proton | 05% | 05% | 05% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observerad 24 APR 091 Prognoserat 25 APR-27 APR 094/094/096 90 Day Mean 24 APR 104
V. Geomagnetiskt A-index
OBSERVED AFR/AP 23 APR 013/014 ESTIMATED AFR/AP 24 APR 027/032 PREDICTED AFR/AP 25 APR-27 APR 015/015-010/012-010/010
VI. Chanser för geomagnetisk aktivitet från 25 APR till 27 APR
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 25% | 20% | 20% |
| Små stormförhållanden | 10% | 05% | 05% |
| Svåra stormförhållanden | 05% | 05% | 05% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 30% | 25% | 20% |
| Små stormförhållanden | 10% | 05% | 05% |
| Svåra stormförhållanden | 05% | 05% | 05% |
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