Viewing archive of onsdag, 23 maj 2012
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 2012 May 23 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 144 publicerat klockan 2200Z på 23 May 2012IA. Analys av solfläcksgrupper och solaktivitet från 22-2100Z till 23-2100Z Solar activity was low. Region 1484 (N11W56) produced
a C1/Sf flare at 23/0027Z. Region 1484 decayed slightly in its
leader and intermediate spots. Slight growth was observed in Region
1483 (S24W79) as it approached the west limb. New Region 1489
(S30E40) was numbered today. The rest of the spotted regions showed
no significant changes. No earth directed CMEs were observed during
the reporting period.
IB. Prognos för solaktivitet
Solar activity is expected to be very
low to low with a slight chance for an M-class flare for the
forecast period (24 - 26 May).
IIA. Sammanfattning av geofysisk aktivitet 22-2100Z till 23-2100Z
The geomagnetic field ranged from quiet to minor storming. Early on
23 May, solar wind speed at the ACE spacecraft increased from
approximately 430 km/s to 630 km/s while the interplanetary magnetic
field (IMF) fluctuated between +/- 10 nT. The geomagnetic field
responded with active to minor storm periods between 23/0000 -
0900Z. By about 23/0600Z, total field strength decreased to
approximately 4 - 5 nT while the Bz component remained mostly
positive. Solar wind speed remained fairly steady around 580 km/s
to 600 km/s through the end of the reporting period.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is
expected to be quiet to unsettled with a chance for further active
periods on day 1 (24 May). Mostly quiet conditions are expected on
day 2 (25 May). On day 3 (26 May), quiet to unsettled conditions
are expected with a chance for isolated active periods around
mid-day as a glancing blow from the 22 May CME is possible.
III. Chans för solutbrott från 24 May till 26 May
| M-klass | 10% | 10% | 10% |
| X-klass | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observerad 23 May 117 Prognoserat 24 May-26 May 115/115/110 90 Day Mean 23 May 116
V. Geomagnetiskt A-index
Observerad Afr/Ap 22 May 015/018 Förväntat Afr/Ap 23 May 012/018 Prognoserat Afr/Ap 24 May-26 May 010/010-005/005-008/008
VI. Chanser för geomagnetisk aktivitet från 24 May till 26 May
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 25% | 05% | 25% |
| Små stormförhållanden | 15% | 01% | 10% |
| Svåra stormförhållanden | 05% | 01% | 01% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 30% | 10% | 30% |
| Små stormförhållanden | 20% | 05% | 15% |
| Svåra stormförhållanden | 05% | 01% | 05% |
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Rymdvädersfakta
| Senaste X-utbrottet | 2024/03/28 | X1.1 |
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| Fläckfria dagar | |
|---|---|
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