Viewing archive of tisdag, 25 maj 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 May 25 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 146 publicerat klockan 2200Z på 25 May 2004IA. Analys av solfläcksgrupper och solaktivitet från 24-2100Z till 25-2100Z Solar activity was at low levels. Region 615 (N17W53)
produced the largest flare of the period, a C1 x-ray event that
occurred at 24/2239Z. Region 618 (S10W00) was limited to B-class
flare production this period while two delta structures remain
evident across the magnetic region center in this beta-gamma-delta
complex. Little change was noted in sunspot area today. A 20
degree filament that was seen near the north-center of the disk
became active just before 24/1800Z, and had fully erupted by
24/1930Z. This disappearing filament resulted in a northward
directed CME as seen on LASCO imagery and appears to have little
geoeffective potential. No new regions were numbered today.
IB. Prognos för solaktivitet
Solar activity is expected to be at
low to moderate levels. Region 618 remains capable of producing
isolated M-class flare activity.
IIA. Sammanfattning av geofysisk aktivitet 24-2100Z till 25-2100Z
The geomagnetic field was at quiet to unsettled levels.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is
expected to be at quiet to unsettled levels throughout the period.
NOTE: The ACE spacecraft orbit will bring ACE nearly in line with
the Sun from about May 30 to June 2, 2004. During that time solar
radio noise is expected to interfere with spacecraft telemetry
resulting in the loss of solar wind plasma, magnetic field, and
particle data.
III. Chans för solutbrott från 26 May till 28 May
| M-klass | 50% | 50% | 50% |
| X-klass | 10% | 10% | 10% |
| Proton | 05% | 05% | 05% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observerad 25 May 102 Prognoserat 26 May-28 May 100/100/105 90 Day Mean 25 May 105
V. Geomagnetiskt A-index
Observerad Afr/Ap 24 May 008/011 Förväntat Afr/Ap 25 May 007/010 Prognoserat Afr/Ap 26 May-28 May 007/010-010/010-010/010
VI. Chanser för geomagnetisk aktivitet från 26 May till 28 May
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 15% | 20% | 20% |
| Små stormförhållanden | 05% | 10% | 10% |
| Svåra stormförhållanden | 05% | 05% | 05% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 20% | 20% | 20% |
| Små stormförhållanden | 10% | 10% | 10% |
| Svåra stormförhållanden | 05% | 05% | 05% |
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