Viewing archive of måndag, 15 mars 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 Mar 15 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 074 publicerat klockan 2200Z på 15 MAR 1999IA. Analys av solfläcksgrupper och solaktivitet från 14-2100Z till 15-2100Z SOLAR ACTIVITY CONTINUED AT MODERATE LEVELS. REGION
8487 (N16E11) SHOWED A SMALL INCREASE IN AREA AND MAGNETIC FIELD
INTENSITY AND PRODUCED AN M1/1N PARALLEL-RIBBON FLARE AT 15/0336Z
ASSOCIATED WITH A TYPE II RADIO SWEEP. SLOW GROWTH IN PENUMBRAL
COVERAGE AND MAGNETIC FIELD INTENSITY ALSO OCCURRED WITHIN REGION
8485 (N23W25). IT REMAINED A LARGE F-TYPE SPOT GROUP WITH MIXED
POLARITIES AND PRODUCED ISOLATED B- AND C-CLASS SUBFLARES. THE
REMAINING SPOT GROUPS WERE QUIET AND STABLE. NO NEW REGIONS WERE
ASSIGNED.
IB. Prognos för solaktivitet
SOLAR ACTIVITY IS EXPECTED TO BE LOW
TO MODERATE. REGIONS 8485 AND 8487 MAY PRODUCE ISOLATED M-CLASS
FLARES SOMETIME DURING THE PERIOD.
IIA. Sammanfattning av geofysisk aktivitet 14-2100Z till 15-2100Z
THE GEOMAGNETIC FIELD VARIED FROM QUIET TO ACTIVE LEVELS AT ALL
LATITUDES AND SHOWED A DECREASING TREND AFTER 15/1600Z. RECENT
ACTIVE PERIODS APPEAR TO BE IN RESPONSE TO A HIGH-SPEED CORONAL HOLE
WINDSTREAM.
IIB. Prognos för geofysisk aktivitet
GEOMAGNETIC FIELD ACTIVITY IS
EXPECTED TO CONTINUE AT QUIET TO ACTIVE LEVELS DURING THE FIRST DAY
OF THE FORECAST PERIOD, THEN DECLINE TO QUIET TO UNSETTLED LEVELS
FOR THE REST OF THE PERIOD.
III. Chans för solutbrott från 16 MAR till 18 MAR
| M-klass | 40% | 40% | 40% |
| X-klass | 05% | 05% | 05% |
| Proton | 05% | 05% | 05% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observerad 15 MAR 150 Prognoserat 16 MAR-18 MAR 150/145/140 90 Day Mean 15 MAR 142
V. Geomagnetiskt A-index
OBSERVED AFR/AP 14 MAR 012/013 ESTIMATED AFR/AP 15 MAR 015/015 PREDICTED AFR/AP 16 MAR-18 MAR 015/012-012/010-007/005
VI. Chanser för geomagnetisk aktivitet från 16 MAR till 18 MAR
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 35% | 25% | 20% |
| Små stormförhållanden | 10% | 05% | 05% |
| Svåra stormförhållanden | 01% | 01% | 01% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 40% | 35% | 20% |
| Små stormförhållanden | 15% | 10% | 05% |
| Svåra stormförhållanden | 01% | 01% | 01% |
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Rymdvädersfakta
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