Viewing archive of lördag, 29 september 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 Sep 29 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 273 publicerat klockan 2200Z på 29 Sep 2012IA. Analys av solfläcksgrupper och solaktivitet från 28-2100Z till 29-2100Z Solar activity was at low levels. Numerous weak
C-class events were observed during the past 24 hours, mostly from
Regions 1575 (N07W73) and 1577 (N09W54). New Region 1583 (N13W75)
emerged on the disk as a simple bipolar group. No significant
changes were observed from the remainder of the disk and limb. No
Earth-directed CMEs were observed during the period.
IB. Prognos för solaktivitet
Solar activity is expected to be at
low levels with a slight chance for M-class activity all three days
of the forecast period (30 September - 02 October).
IIA. Sammanfattning av geofysisk aktivitet 28-2100Z till 29-2100Z
The geomagnetic field was at quiet levels. ACE satellite
measurements indicated a steady decline in wind speed from about 325
km/s to near 275 km/s while the Bz component of the interplanetary
magnetic field did not vary much beyond +/- 3 nT. At about
29/0100Z, a solar sector boundary crossing from a negative (toward)
to a positive (away) orientation was observed.
IIB. Prognos för geofysisk aktivitet
Geomagnetic field activity is
expected to be at predominately quiet levels through about midday on
day one (30 September). By late on day one, active levels with a
chance for minor to major storm periods are expected due to the
arrival of the Earth-directed CME observed early on 28 September.
On day two (01 October), continued minor to major storm conditions
are expected early in the day, decreasing to mostly quiet to
unsettled levels with a chance for isolated active periods as
effects from the CME wane. Predominately quiet to unsettled
conditions are expected on day three (02 October).
III. Chans för solutbrott från 30 Sep till 02 Oct
| M-klass | 10% | 10% | 10% |
| X-klass | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observerad 29 Sep 136 Prognoserat 30 Sep-02 Oct 135/130/125 90 Day Mean 29 Sep 125
V. Geomagnetiskt A-index
Observerad Afr/Ap 28 Sep 002/003 Förväntat Afr/Ap 29 Sep 004/004 Prognoserat Afr/Ap 30 Sep-02 Oct 018/035-018/025-007/008
VI. Chanser för geomagnetisk aktivitet från 30 Sep till 02 Oct
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 35% | 35% | 10% |
| Små stormförhållanden | 25% | 30% | 05% |
| Svåra stormförhållanden | 05% | 10% | 01% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 10% | 10% | 15% |
| Små stormförhållanden | 25% | 20% | 20% |
| Svåra stormförhållanden | 60% | 70% | 20% |
Senaste nytt
måndag, 22 april 2024
Lot's of sunspots! Big chance for major flare activity?
lördag, 23 mars 2024
X1.1 solar flare with earth-directed CME
onsdag, 20 mars 2024
Sunspot region 3615, G1 watch
Senaste inläggen
Unspecified geomagnetic activity 949AR3654 9Changelog/Featurelog 154What are these long and thin eruptions? 9IMF - BT strength 8
Fler foruminläggStöd SpaceWeatherLive.com!
För att vara tillgängliga vid stora norrskensutbrott måsta vi ha kraftiga servrar som kan hantera alla besökare. Donera och stöd vårt projekt, så att vi kan finnas online även under stora stormar!
Rymdvädersfakta
| Senaste X-utbrottet | 2024/03/28 | X1.1 |
| Senaste M-utbrottet | 2024/04/27 | M2.1 |
| Senaste geomagnetiska stormen | 2024/04/26 | Kp5+ (G1) |
| Fläckfria dagar | |
|---|---|
| Senaste dag utan solfläckar | 2022/06/08 |
| Månadsvis faktiskt antal solfläckar | |
|---|---|
| mars 2024 | 104.9 -19.8 |
| Last 30 days | 136.8 +28.6 |