Viewing archive of tisdag, 4 maj 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 May 04 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 124 publicerat klockan 2200Z på 04 MAY 1999IA. Analys av solfläcksgrupper och solaktivitet från 03-2100Z till 04-2100Z SOLAR ACTIVITY WAS MODERATE. THIS WAS DUE TO A SINGLE
M1 EVENT THAT OCCURRED AT 03/2311UT. THIS WAS AN OPTICALLY
UNCORRELATED EVENT. THE MOST ACTIVE REGION WAS 8527 (N26E12),
PRODUCING A C2/1F EVENT AT 04/1858. THIS WAS SOMEWHAT UNUSUAL
ACTIVITY FROM A SINGLE SPOT HSX CLASSIFICATION. THE REST OF THE
REGIONS SHOWED LITTLE CHANGE AND ONLY MINOR ACTIVITY DURING THE DAY.
A NEW REGION WAS NUMBERED: 8531 (N18E65), A 2 SPOT CSO BETA GROUP.
IB. Prognos för solaktivitet
SOLAR ACTIVITY IS EXPECTED TO BE LOW
TO MODERATE. ISOLATED M-CLASS EVENTS CAN BE EXPECTED IN THE NEXT 72
HOURS.
IIA. Sammanfattning av geofysisk aktivitet 03-2100Z till 04-2100Z
THE GEOMAGNETIC FIELD WAS MOSTLY QUIET WITH A SINGLE UNSETTLED PERIOD
OCCURRING AT 04/06-09UT. THE GREATER THAN 2 MEV ELECTRONS AT
GEOSYNCHRONOUS ORBIT WERE AT HIGH LEVELS ALL DAY.
IIB. Prognos för geofysisk aktivitet
THE GEOMAGNETIC FIELD IS
EXPECTED TO INCREASE FROM QUIET TO ACTIVE CONDITIONS OVER THE NEXT
TWO DAYS. THIS INCREASE SHOULD BE CAUSED BY THE CORONAL MASS
EJECTION THAT OCCURRED ON 03/0606UT AS SEEN BY SOHO-LASCO. THE EPAM
PLOT (ELECTRON AND PROTON PARTICLES) FROM THE ACE SATELLITE HAS
SHOWN A STRONG AND STEADY INCREASE SINCE APPROXIMATELY 03/2200UT.
THIS IS USUALLY AN INDICATOR OF AN IMMINENT SHOCK ARRIVAL AT EARTH.
III. Chans för solutbrott från 05 MAY till 07 MAY
| M-klass | 40% | 40% | 40% |
| X-klass | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observerad 04 MAY 139 Prognoserat 05 MAY-07 MAY 125/125/125 90 Day Mean 04 MAY 129
V. Geomagnetiskt A-index
OBSERVED AFR/AP 03 MAY 008/009 ESTIMATED AFR/AP 04 MAY 010/010 PREDICTED AFR/AP 05 MAY-07 MAY 020/020-020/020-015/015
VI. Chanser för geomagnetisk aktivitet från 05 MAY till 07 MAY
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 40% | 40% | 30% |
| Små stormförhållanden | 25% | 25% | 20% |
| Svåra stormförhållanden | 01% | 01% | 01% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 60% | 60% | 40% |
| Små stormförhållanden | 20% | 20% | 15% |
| Svåra stormförhållanden | 01% | 01% | 01% |
All times in UTC
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