Viewing archive of fredag, 7 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 07 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 127 publicerat klockan 2200Z på 07 MAY 1999IA. Analys av solfläcksgrupper och solaktivitet från 06-2100Z till 07-2100Z SOLAR ACTIVITY WAS MODERATE DUE TO AN UNCORRELATED M3
EVENT AT 07/0441UT. IT IS MOST LIKELY THAT THIS EVENT ORIGINATED
FROM BEYOND THE EAST LIMB. OVERALL ACTIVITY HAS INCREASED
DRAMATICALLY IN THE LAST 24 HOURS. CURRENTLY THERE ARE 11 SPOTTED
REGIONS ON THE DISK, 6 OF WHICH HAVE RECENTLY ROTATED ONTO THE
EASTERN LIMB. 7 DIFFERENT REGIONS PRODUCED OPTICAL SUB-FLARES DURING
THE PERIOD. THE TWO MOST ACTIVE REGIONS WERE: REGION 8525 (N16W31)
WHICH PRODUCED A MODERATE DURATION C7/1F EVENT IN CONJUNCTION WITH A
6 DEGREE DSF AT 07/1410UT AND REGION 8539 (N13E45) WHICH PRODUCED A
C3/SF AT 07/0703UT. 4 NEW REGIONS WERE NUMBERED: 8537 (N19W60), 8538
(N10W33), 8539 (N13E45), AND 8540 (S28E70).
IB. Prognos för solaktivitet
SOLAR ACTIVITY IS EXPECTED TO BE LOW
WITH THE POSSIBILITY OF ISOLATED M-CLASS EVENTS.
IIA. Sammanfattning av geofysisk aktivitet 06-2100Z till 07-2100Z
THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED. THE GREATER THAN 2 MEV
ELECTRONS AT GEOSYNCHRONOUS ORBIT WERE AT NORMAL TO MODERATE LEVELS.
IIB. Prognos för geofysisk aktivitet
THE GEOMAGNETIC FIELD IS
EXPECTED TO REMAIN AT QUIET TO UNSETTLED LEVELS.
III. Chans för solutbrott från 08 MAY till 10 MAY
| M-klass | 30% | 30% | 30% |
| X-klass | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observerad 07 MAY 163 Prognoserat 08 MAY-10 MAY 165/165/170 90 Day Mean 07 MAY 130
V. Geomagnetiskt A-index
OBSERVED AFR/AP 06 MAY 009/011 ESTIMATED AFR/AP 07 MAY 010/010 PREDICTED AFR/AP 08 MAY-10 MAY 010/010-005/005-005/005
VI. Chanser för geomagnetisk aktivitet från 08 MAY till 10 MAY
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 25% | 25% | 20% |
| Små stormförhållanden | 15% | 15% | 10% |
| Svåra stormförhållanden | 01% | 01% | 01% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 30% | 25% | 25% |
| Små stormförhållanden | 20% | 15% | 15% |
| Svåra stormförhållanden | 01% | 01% | 01% |
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