Viewing archive of onsdag, 28 maj 2008
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 2008 May 28 2203 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 149 publicerat klockan 2200Z på 28 May 2008IA. Analys av solfläcksgrupper och solaktivitet från 27-2100Z till 28-2100Z Solar activity was at very low levels. The visible
disk remained spotless.
IB. Prognos för solaktivitet
Solar activity is expected to remain
at very low levels.
IIA. Sammanfattning av geofysisk aktivitet 27-2100Z till 28-2100Z
The geomagnetic field was at mostly unsettled levels today. At about
27/2200Z, the ACE satellite detected a Solar Sector Boundary
crossing from a negative (toward) orientation to a positive (away)
orientation. At about 28/0130Z, a shock was detected at ACE with
subsequent sharp increases in both density and wind speed,
indicative of a co-rotating interaction region (CIR). The CIR was
followed by the onset of a high speed stream at about 28/0500Z;
solar wind velocities increased to about 525 km/s by the end of the
summary period. The greater than 2 MeV electron flux at
geosynchronous orbit reached high levels for a brief period today.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is
expected to be at quiet to unsettled levels, with a chance for
isolated active periods, during all three days of the forecast
period (29 May to 31 May) due to the high speed stream.
III. Chans för solutbrott från 29 May till 31 May
| M-klass | 01% | 01% | 01% |
| X-klass | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observerad 28 May 068 Prognoserat 29 May-31 May 068/068/068 90 Day Mean 28 May 071
V. Geomagnetiskt A-index
Observerad Afr/Ap 27 May 002/003 Förväntat Afr/Ap 28 May 010/010 Prognoserat Afr/Ap 29 May-31 May 008/010-008/010-008/008
VI. Chanser för geomagnetisk aktivitet från 29 May till 31 May
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 15% | 15% | 15% |
| Små stormförhållanden | 05% | 05% | 05% |
| Svåra stormförhållanden | 01% | 01% | 01% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 30% | 30% | 25% |
| Små stormförhållanden | 10% | 10% | 05% |
| Svåra stormförhållanden | 05% | 05% | 05% |
All times in UTC
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