Viewing archive of torsdag, 28 augusti 1997
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 1997 Aug 28 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
******************************** CORRECTED COPY ************************************************ SDF Nummer 240 publicerat klockan 2200Z på 28 AUG 1997IA. Analys av solfläcksgrupper och solaktivitet från 27-2100Z till 28-2100Z SOLAR ACTIVITY WAS VERY LOW. A SERIES OF B-CLASS
EVENTS, THE LARGEST OF WHICH WAS A B9.3, WERE REPORTED. NONE WERE
CORRELATED WITH OPTICAL FLARES. REGION 8076 (N29E24) CONTINUED ITS
GROWTH AND IS NOW A DSI SPOT GROUP IN A BETA-GAMMA CONFIGURATION.
NEW REGION 8079 (N15E10) WAS NUMBERED TODAY. THIS REGION IS
APPROXIMATELY 9 DEGREES SOUTHWEST OF REGION 8078 (N16E12) AND
APPEARS TO BE CONNECTED. HOWEVER, SPACE-BASED X-RAY IMAGES AND
MAGNETIC ANALYSIS INDICATE A TRAILER POLARITY AREA WITHOUT SPOTS
INTERCEDES BETWEEN THE TWO REGIONS, THUS LENDING CREDENCE TO THEIR
SEPARATION.
IB. Prognos för solaktivitet
SOLAR ACTIVITY IS EXPECTED TO BE VERY
LOW TO LOW. REGION 8076 HAS A GOOD CHANCE OF PRODUCING ADDITIONAL
C-CLASS EVENTS AND AN OUTSIDE CHANCE OF PRODUCING AN ISOLATED
M-CLASS EVENT.
IIA. Sammanfattning av geofysisk aktivitet 27-2100Z till 28-2100Z
THE GOEMAGNETIC FIELD RANGED FROM QUIET TO MINOR STORMING AT ALL
LATITUDES. ACTIVE TO MINOR STORM LEVELS WERE OBSERVED BETWEEN
28/0300 AND 28/0900Z. THIS DISTURBANCE MAY HAVE BEEN THE RESULT OF A
MODERATELY WELL-PLACE NORTHERN CORONAL HOLE EXTENSION. SPACE-BASED
INSTRUMENTS INDICATE EARTH WAS IN A HIGH SPEED, LOW DENSITY CORONAL
HOLE STREAM AT THE TIME OF THE DISTURBANCE.
IIB. Prognos för geofysisk aktivitet
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE QUIET TO UNSETTLED FOR THE ENTIRE FORECAST PERIOD.
III. Chans för solutbrott från 29 AUG till 31 AUG
| M-klass | 05% | 05% | 05% |
| X-klass | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observerad 28 AUG 091 Prognoserat 29 AUG-31 AUG 092/092/092 90 Day Mean 28 AUG 073
V. Geomagnetiskt A-index
OBSERVED AFR/AP 27 AUG 004/005 ESTIMATED AFR/AP 28 AUG 014/014 PREDICTED AFR/AP 29 AUG-31 AUG 010/005-010/008-005/008
VI. Chanser för geomagnetisk aktivitet från 29 AUG till 31 AUG
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 15% | 15% | 10% |
| Små stormförhållanden | 01% | 05% | 05% |
| Svåra stormförhållanden | 01% | 01% | 01% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 15% | 15% | 15% |
| Små stormförhållanden | 05% | 05% | 05% |
| Svåra stormförhållanden | 01% | 01% | 01% |
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