Viewing archive of lördag, 24 november 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 Nov 24 2300 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 329 publicerat klockan 2200Z på 24 Nov 2012IA. Analys av solfläcksgrupper och solaktivitet från 23-2100Z till 24-2100Z Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C3/1n event observed at
24/1340Z from Region 1618 (N08W41) accompanied by a Type II radio sweep
(685 km/s). No coronagraph imagery was available for analysis at the
time of this report. Region 1618 showed signs of decay during the
period, but retained weak beta-gamma-delta characteristics. New Region
1621 (N15E76) was numbered today and is currently a simple Hsx type with
alpha magnetic characteristics. The remaining 3 regions were stable.
Other than the potential CME associated with the Type II sweep noted
above, no earth-directed CMEs were detected.
IB. Prognos för solaktivitet
Solar activity is expected to be at low
levels on days one, two, and three (25 Nov, 26 Nov, 27 Nov) with a
diminishing chance for an isolated M-flare from Region 1618 as it
continues to decay.
IIA. Sammanfattning av geofysisk aktivitet 23-2100Z till 24-2100Z
The geomagnetic
field has been at quiet to active levels for the past 24 hours. The
maximum solar wind speed at the ACE spacecraft was 439 km/s at 24/1137Z.
Total IMF reached 17.1 nT at 23/2216Z. The maximum southward component
of Bz reached -10.3 nT at 24/0621Z. Electrons greater than 2 MeV at
geosynchronous orbit reached a peak level of 789 pfu.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is expected
to range from quiet to minor storm levels over the next three days (25
Nov, 26 Nov, 27 Nov). The 21 November CME is expected to become
geoeffective late on 24 or early on 25 November. Unsettled to active
periods with an isolated minor storm period are expected on day 1 (25
November). Conditions are expected to return to quiet to unsettled
levels on day 2 (26 November). The 23 November CME is expected to
arrive on day 3 (27 November), bringing unsettled to active conditions
with a slight chance for an isolated minor storm period, particularly at
high latitudes.
III. Chans för solutbrott från 25 Nov till 27 Nov
| M-klass | 30% | 30% | 30% |
| X-klass | 05% | 05% | 05% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observerad 24 Nov 118 Prognoserat 25 Nov-27 Nov 120/115/110 90 Day Mean 24 Nov 123
V. Geomagnetiskt A-index
Observerad Afr/Ap 23 Nov 006/006 Förväntat Afr/Ap 24 Nov 013/015 Prognoserat Afr/Ap 25 Nov-27 Nov 015/018-008/005-013/015
VI. Chanser för geomagnetisk aktivitet från 25 Nov till 27 Nov
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 30% | 10% | 25% |
| Små stormförhållanden | 15% | 05% | 10% |
| Svåra stormförhållanden | 05% | 01% | 01% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 15% | 15% | 15% |
| Små stormförhållanden | 30% | 15% | 25% |
| Svåra stormförhållanden | 50% | 15% | 35% |
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Rymdvädersfakta
| Senaste X-utbrottet | 2024/05/03 | X1.6 |
| Senaste M-utbrottet | 2024/05/03 | M4.4 |
| Senaste geomagnetiska stormen | 2024/05/02 | Kp7- (G3) |
| Fläckfria dagar | |
|---|---|
| Senaste dag utan solfläckar | 2022/06/08 |
| Månadsvis faktiskt antal solfläckar | |
|---|---|
| april 2024 | 136.5 +31.6 |
| Last 30 days | 153 +57.6 |