Viewing archive of tisdag, 7 juni 2011
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 2011 Jun 07 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 158 publicerat klockan 2200Z på 07 Jun 2011IA. Analys av solfläcksgrupper och solaktivitet från 06-2100Z till 07-2100Z Solar activity has been at moderate levels for the past
24 hours. Region 1226 (S21W64) was the most active and produced the
largest event of the period, an M2/2N flare at 07/0641Z. Associated
with this event was a Type II radio sweep, a Type IV radio sweep, a
Tenflare of 720 sfu, and a full halo asymmetric CME with an
estimated plane of sky speed of 1155 km/s. Region 1226 had
previously produced only low level x-ray events and has lost most of
it spots and magnetic complexity after the M-flare. The other
regions on the disk remained stable and quiet.
IB. Prognos för solaktivitet
Solar activity is expected to be at
very low levels with a chance for C-class events for the next three
days (08-10 June).
IIA. Sammanfattning av geofysisk aktivitet 06-2100Z till 07-2100Z
The geomagnetic field has been at predominantly quiet levels for the
past 24 hours. Solar wind speeds, as measured by the ACE spacecraft,
increased from a steady 400 km/s to around 500 km/s briefly and
decreased back to around 430 km/s. A 10 MeV and a 100 MeV proton
event, are currently in progress. The greater than 10 MeV proton
flux began at 07/0820Z and reached a peak flux of 72.9 pfu at
07/1820Z. The greater than 100 MeV proton flux began at 07/0720Z and
reached a peak of 4.5 pfu at 07/1025Z. Both of these events are
associated with the M2/2N flare at 07/0641Z from Region 1226 and are
currently declining.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is
expected to be at quiet levels on day one (08 June) and on the
beginning of day two (09 June). Midday on day two, active to minor
storm levels are expected as the CME, associated with todays M2/2N
flare from Region 1226, becomes geoeffective. With the arrival of
this CME, there is a slight chance for major storm periods at high
latitudes. On day three (10 June), as the effects of the CME
continue, active levels, with chance for minor storm periods, are
also expected.
III. Chans för solutbrott från 08 Jun till 10 Jun
| M-klass | 01% | 01% | 01% |
| X-klass | 01% | 01% | 01% |
| Proton | 99% | 99% | 50% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observerad 07 Jun 096 Prognoserat 08 Jun-10 Jun 096/094/094 90 Day Mean 07 Jun 105
V. Geomagnetiskt A-index
Observerad Afr/Ap 06 Jun 005/007 Förväntat Afr/Ap 07 Jun 003/003 Prognoserat Afr/Ap 08 Jun-10 Jun 005/005-020/025-018/020
VI. Chanser för geomagnetisk aktivitet från 08 Jun till 10 Jun
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 15% | 20% | 30% |
| Små stormförhållanden | 10% | 40% | 30% |
| Svåra stormförhållanden | 01% | 25% | 20% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 15% | 20% | 30% |
| Små stormförhållanden | 10% | 45% | 35% |
| Svåra stormförhållanden | 01% | 30% | 25% |
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