Viewing archive of måndag, 5 april 2004
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 2004 Apr 05 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 096 publicerat klockan 2200Z på 05 Apr 2004IA. Analys av solfläcksgrupper och solaktivitet från 04-2100Z till 05-2100Z Solar activity has been moderate. Region 588 (S15E25)
produced numerous B-class flares during the period, and the region
produced an M1.7/1f flare at 05/0555 UTC. A Type II radio sweep
(with a speed of 836 km/s) was observed shortly after the M1.7
flare, and LASCO imagery indicated a partial-halo CME emerging from
the southeast limb at 0606 UTC with a plane-of-sky speed of
approximately 750 km/s. This CME does not appear to be directed
towards Earth, but it may provide a glancing blow to the geomagnetic
field. Region 588 has developed a north-south orientation and
increased in magnetic complexity to a beta-gamma configuration. New
Region 589 (N10E54) was numbered today.
IB. Prognos för solaktivitet
Solar activity is expected to be low.
Regions 588 and 587 (S14W31) may produce C- and isolated M-class
flares.
IIA. Sammanfattning av geofysisk aktivitet 04-2100Z till 05-2100Z
The geomagnetic field has been at quiet to minor storm levels. ACE
data indicate that Earth's geomagnetic field came under the
influence of a corotating interaction region late on 4 November.
Solar wind speed at ACE began to steadily increase to around 450
km/s at the end of the period, possibly indicating the beginning
effects of a coronal hole moving into geoeffective position.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is
expected to be quiet to active, with isolated periods of minor storm
conditions on days one and two (6-7 November) from the effects of
the coronal hole. Activity should subside on day three (8 November)
to unsettled levels.
III. Chans för solutbrott från 06 Apr till 08 Apr
| M-klass | 25% | 25% | 25% |
| X-klass | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observerad 05 Apr 109 Prognoserat 06 Apr-08 Apr 110/110/105 90 Day Mean 05 Apr 111
V. Geomagnetiskt A-index
Observerad Afr/Ap 04 Apr 012/012 Förväntat Afr/Ap 05 Apr 010/010 Prognoserat Afr/Ap 06 Apr-08 Apr 018/020-015/015-015/020
VI. Chanser för geomagnetisk aktivitet från 06 Apr till 08 Apr
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 30% | 30% | 30% |
| Små stormförhållanden | 20% | 20% | 15% |
| Svåra stormförhållanden | 15% | 15% | 05% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 30% | 30% | 30% |
| Små stormförhållanden | 35% | 35% | 30% |
| Svåra stormförhållanden | 25% | 25% | 20% |
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Rymdvädersfakta
| Senaste X-utbrottet | 2024/03/28 | X1.1 |
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| Fläckfria dagar | |
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