Viewing archive of söndag, 31 juli 2005
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 2005 Jul 31 2224 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 212 publicerat klockan 2200Z på 31 Jul 2005IA. Analys av solfläcksgrupper och solaktivitet från 30-2100Z till 31-2100Z Solar activity was moderate during the last 24 hours.
Region 792 (N12E38) produced today's only M-class event, an M1 at 1224 UTC.
The group produced additional B-class events during the day. This
region does not appear to have changed very much during the past 24
hours; it continues to be the largest on the disk and is a compact
group of spots with a beta-gamma-delta magnetic classification.
Region 791 (N12W62) produced a C7/Sf at 0932 UTC but was otherwise
quiet and stable. Two new regions rotated into view today: Region
794 (S11E73) and Region 795 (N15E77). Both appear to be simple
H-type groups at this time.
IB. Prognos för solaktivitet
Solar activity is expected to be
moderate with Region 792 as the most likely source for activity.
There continues to be a chance for isolated major flare activity out
of 792.
IIA. Sammanfattning av geofysisk aktivitet 30-2100Z till 31-2100Z
The geomagnetic field was mostly quiet during the past 24 hours. The
greater than 10 MeV event that began at 27/2300 UTC and reached
maximum of 41 PFU at 29/1715 UTC continues in progress but was
slowly declining during the day. The greater than
2 MeV electron flux reached high levels during the past 24 hours.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is
expected to become mostly active with a chance for isolated minor
storm periods for 01 August due to the arrival of a glancing blow
from the X1/CME of 30/0635 UTC. Conditions should decline to
unsettled with occasional active periods for 02 August and should
be predominantly quiet on 03 August.
III. Chans för solutbrott från 01 Aug till 03 Aug
| M-klass | 75% | 75% | 75% |
| X-klass | 15% | 15% | 15% |
| Proton | 20% | 20% | 20% |
| PCAF | yellow | ||
IV. Penticton 10.7 cm Flux
Observerad 31 Jul 110 Prognoserat 01 Aug-03 Aug 115/115/110 90 Day Mean 31 Jul 096
V. Geomagnetiskt A-index
Observerad Afr/Ap 30 Jul 011/016 Förväntat Afr/Ap 31 Jul 007/015 Prognoserat Afr/Ap 01 Aug-03 Aug 020/025-015/015-007/005
VI. Chanser för geomagnetisk aktivitet från 01 Aug till 03 Aug
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 40% | 35% | 20% |
| Små stormförhållanden | 25% | 15% | 10% |
| Svåra stormförhållanden | 10% | 05% | 05% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 30% | 30% | 20% |
| Små stormförhållanden | 30% | 20% | 10% |
| Svåra stormförhållanden | 15% | 10% | 05% |
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Rymdvädersfakta
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