Viewing archive of onsdag, 22 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 22 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 112 publicerat klockan 2200Z på 22 APR 1998IA. Analys av solfläcksgrupper och solaktivitet från 21-2100Z till 22-2100Z SOLAR ACTIVITY WAS VERY LOW. REGION 8205 (N21W66)
PRODUCED SEVERAL MINOR B-CLASS X-RAY SUBFLARES. THIS REGION DOUBLED
IN WHITE LIGHT AREA SINCE YESTERDAY BUT HAS CHANGED VERY LITTLE IN
OVERALL COMPLEXITY. NEW REGION 8208 (N18E57), A SINGLE AXX SPOT
GROUP, WAS NUMBERED TODAY. REMAINING REGIONS WERE STABLE.
IB. Prognos för solaktivitet
SOLAR ACTIVITY IS EXPECTED TO REMAIN
VERY LOW.
IIA. Sammanfattning av geofysisk aktivitet 21-2100Z till 22-2100Z
THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED. THE GREATER THAN 10 MEV
PROTON EVENT THAT BEGAN ON 20/1130Z, IS STILL IN PROGRESS. THE EVENT
CONTINUES TO DECLINE AND IS CURRENTLY AT 220 PFU. THE GREATER THAT
100 MEV EVENT ENDED AT 22/0430Z. THE POLAR CAP ABSORPTION DURING
THIS EVENT REACHED A MAXIMUM OF 13 DB AT 21/1200Z AND REMAINS IN
PROGRESS AT 3.2DB.
IIB. Prognos för geofysisk aktivitet
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE QUIET TO UNSETTLED. OCCASIONAL ACTIVE PERIODS ARE
EXPECTED TOMORROW THROUGH FRIDAY AS AN EXTENSION TO THE SOUTHERN
CORONAL HOLE MOVES INTO A FAVORABLE GEOEFFECTIVE POSITION. THE
PROTON EVENT IN PROGRESS IS EXPECTED TO END TOMORROW.
III. Chans för solutbrott från 23 APR till 25 APR
| M-klass | 05% | 05% | 05% |
| X-klass | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | IN PROGRESS | ||
IV. Penticton 10.7 cm Flux
Observerad 22 APR 088 Prognoserat 23 APR-25 APR 086/084/084 90 Day Mean 22 APR 104
V. Geomagnetiskt A-index
OBSERVED AFR/AP 21 APR 006/007 ESTIMATED AFR/AP 22 APR 007/010 PREDICTED AFR/AP 23 APR-25 APR 012/015-012/020-010/015
VI. Chanser för geomagnetisk aktivitet från 23 APR till 25 APR
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 20% | 30% | 30% |
| Små stormförhållanden | 05% | 10% | 10% |
| Svåra stormförhållanden | 01% | 01% | 01% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 25% | 40% | 40% |
| Små stormförhållanden | 10% | 15% | 15% |
| Svåra stormförhållanden | 01% | 05% | 05% |
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