Viewing archive of tisdag, 25 juli 2000
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 2000 Jul 25 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 207 publicerat klockan 2200Z på 25 JUL 2000IA. Analys av solfläcksgrupper och solaktivitet från 24-2100Z till 25-2100Z SOLAR ACTIVITY HAS BEEN HIGH. REGION 9097 (N08W15),
CURRENTLY THE LARGEST GROUP ON THE DISK, PRODUCED AN M8/2B FLARE AT
0249Z WHICH WAS ACCOMPANIED BY TYPE II AND TYPE IV RADIO SWEEPS. AN
ASSOCIATED FAINT HALO CME WAS OBSERVED BY LASCO, BEGINNING AT
0330Z. THIS REGION PRODUCED AN ADDITIONAL M-CLASS EVENT: AN M1/1B AT
1846Z. REGION 9087 (S10W80) PRODUCED AN M3/2N AT 0456Z. THE GROUP
CONTINUES TO BE A LARGE, F-TYPE REGION AS IT APPROACHES WEST LIMB.
SOME GROWTH WAS NOTED IN REGION 9090 (N15W48) BUT THE GROUP COULD
ONLY MUSTER A C6/SN FLARE AT 1241Z.
IB. Prognos för solaktivitet
SOLAR ACTIVITY IS EXPECTED TO BE
MODERATE, WITH REGIONS 9087, 9097, AND 9090 BEING THE MOST LIKELY
SOURCES FOR M-CLASS FLARES. THERE IS A CHANCE FOR AN ISOLATED
X-CLASS OR PROTON PRODUCING FLARE DURING THE NEXT THREE DAYS.
IIA. GEOPHYSICAL ACTIVITY SUMMARY 24/2100Z TO 25/2100Z:
THE GEOMAGNETIC FIELD HAS BEEN QUIET TO UNSETTLED.
IIB. Prognos för geofysisk aktivitet
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE UNSETTLED WITH POSSIBLE ACTIVE PERIODS DURING THE
NEXT 24 HOURS. AN INCREASE MAY OCCUR IF EFFECTS FROM THE CME OF 24
JULY MATERIALIZE. MOSTLY UNSETTLED CONDITIONS SHOULD PREVAIL ON
THE SECOND DAY, AND AN INCREASE TO ACTIVE (WITH POSSIBLE MINOR-TO-
MAJOR STORM PERIODS) IS EXPECTED SOMETIME ON THE THIRD DAY. THIS
INCREASE IS PREDICTED BECAUSE OF THE HALO CORONAL MASS EJECTION
MENTIONED IN PART IA.
III. Chans för solutbrott från 26 JUL till 28 JUL
| M-klass | 75% | 70% | 65% |
| X-klass | 25% | 25% | 20% |
| Proton | 25% | 25% | 20% |
| PCAF | YELLOW | ||
IV. Penticton 10.7 cm Flux
Observerad 25 JUL 202 Prognoserat 26 JUL-28 JUL 190/190/190 90 Day Mean 25 JUL 190
V. Geomagnetiskt A-index
OBSERVED AFR/AP 24 JUL 004/008 ESTIMATED AFR/AP 25 JUL 007/007 PREDICTED AFR/AP 26 JUL-28 JUL 012/020-010/015-020/025
VI. Chanser för geomagnetisk aktivitet från 26 JUL till 28 JUL
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 20% | 20% | 30% |
| Små stormförhållanden | 10% | 10% | 25% |
| Svåra stormförhållanden | 05% | 05% | 20% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 30% | 30% | 30% |
| Små stormförhållanden | 15% | 15% | 25% |
| Svåra stormförhållanden | 05% | 05% | 25% |
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Rymdvädersfakta
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