Viewing archive of måndag, 19 oktober 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 Oct 19 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 292 publicerat klockan 2200Z på 19 OCT 1998IA. Analys av solfläcksgrupper och solaktivitet från 18-2100Z till 19-2100Z SOLAR ACTIVITY DECREASED TO LOW LEVELS. REGION 8361
(N14W66) GREW SLOWLY AND PRODUCED SEVERAL SUBFLARES, TWO OF WHICH
REACHED C-CLASS. THE LARGEST OF THESE WAS A C7/1N AT 19/1231Z
ASSOCIATED WITH MINOR DISCRETE RADIO EMISSION. REGION 8358 (N15W82)
STABILIZED AS IT APPROACHED THE WEST LIMB. NO NEW REGIONS WERE
ASSIGNED.
IB. Prognos för solaktivitet
SOLAR ACTIVITY IS EXPECTED TO REMAIN
AT LOW LEVELS. REGION 8361 IS EXPECTED TO PRODUCE ADDITIONAL C-CLASS
FLARES BEFORE DEPARTING THE WEST LIMB ON 22 OCTOBER. THERE IS ALSO A
SLIGHT CHANCE FOR AN ISOLATED M-CLASS FLARE FROM THIS REGION.
IIA. Sammanfattning av geofysisk aktivitet 18-2100Z till 19-2100Z
THE GEOMAGNETIC FIELD REACHED STORM LEVELS IN RESPONSE TO A CORONAL
MASS EJECTION ASSOCIATED WITH THE FILAMENT DISAPPEARANCE OF 15
OCTOBER. ACTIVE TO MINOR STORM LEVELS WERE DETECTED AT MIDDLE
LATITUDES WHILE THE HIGH LATITUDES EXPERIENCED ACTIVE TO MAJOR STORM
LEVELS.
IIB. Prognos för geofysisk aktivitet
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE AT UNSETTLED TO ACTIVE LEVELS WITH MINOR STORM LEVELS
POSSIBLE AT HIGH LATITUDES. THIS ACTIVITY IS EXPECTED IN RESPONSE TO
A HIGH-SPEED CORONAL HOLE WIND STREAM.
III. Chans för solutbrott från 20 OCT till 22 OCT
| M-klass | 25% | 20% | 15% |
| X-klass | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observerad 19 OCT 118 Prognoserat 20 OCT-22 OCT 115/115/115 90 Day Mean 19 OCT 132
V. Geomagnetiskt A-index
OBSERVED AFR/AP 18 OCT 007/010 ESTIMATED AFR/AP 19 OCT 035/050 PREDICTED AFR/AP 20 OCT-22 OCT 015/030-015/020-015/012
VI. Chanser för geomagnetisk aktivitet från 20 OCT till 22 OCT
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 35% | 35% | 35% |
| Små stormförhållanden | 10% | 10% | 10% |
| Svåra stormförhållanden | 01% | 01% | 01% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 40% | 35% | 35% |
| Små stormförhållanden | 15% | 10% | 10% |
| Svåra stormförhållanden | 05% | 01% | 01% |
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