Viewing archive of torsdag, 11 april 2013
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 2013 Apr 11 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 101 publicerat klockan 2200Z på 11 Apr 2013IA. Analys av solfläcksgrupper och solaktivitet från 10-2100Z till 11-2100Z Solar activity has been at high levels for the past 24 hours.
The largest solar event of the period was a M6 event observed at
11/0716Z from Region 1719 (N10W00). There are currently 6 numbered
sunspot regions on the disk.
IB. Prognos för solaktivitet
Solar activity is expected to be low with
a chance for M-class flares and a slight chance for an X-class flare on
days one, two, and three (12 Apr, 13 Apr, 14 Apr).
IIA. Sammanfattning av geofysisk aktivitet 10-2100Z till 11-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed,
as measured by the ACE spacecraft, reached a peak speed of 507 km/s at
11/1243Z. Total IMF reached 7 nT at 11/0712Z. The maximum southward
component of Bz reached -4 nT at 11/0916Z. Protons greater than 10 MeV
at geosynchronous orbit reached a peak level of 114 pfu at 11/1645Z.
Protons greater than 100 MeV at geosynchronous orbit reached a peak
level of 2 pfu at 11/1400Z. Electrons greater than 2 MeV at
geosynchronous orbit reached a peak level of 385 pfu.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is expected
to be at quiet levels on day one (12 Apr), quiet to major storm levels
on day two (13 Apr) and unsettled to major storm levels on day three (14
Apr). Protons are expected to cross threshold on day one (12 Apr), have
a chance of crossing threshold on day two (13 Apr) and have a slight
chance of crossing threshold on day three (14 Apr).
III. Chans för solutbrott från 12 Apr till 14 Apr
| M-klass | 50% | 50% | 50% |
| X-klass | 15% | 15% | 15% |
| Proton | 99% | 30% | 10% |
| PCAF | red | ||
IV. Penticton 10.7 cm Flux
Observerad 11 Apr 137 Prognoserat 12 Apr-14 Apr 138/135/130 90 Day Mean 11 Apr 113
V. Geomagnetiskt A-index
Observerad Afr/Ap 10 Apr 005/004 Förväntat Afr/Ap 11 Apr 004/005 Prognoserat Afr/Ap 12 Apr-14 Apr 006/005-018/026-028/045
VI. Chanser för geomagnetisk aktivitet från 12 Apr till 14 Apr
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 10% | 30% | 30% |
| Små stormförhållanden | 01% | 35% | 45% |
| Svåra stormförhållanden | 01% | 10% | 15% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 15% | 10% | 15% |
| Små stormförhållanden | 15% | 20% | 25% |
| Svåra stormförhållanden | 10% | 60% | 35% |
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Rymdvädersfakta
| Senaste X-utbrottet | 2024/05/12 | X1.02 |
| Senaste M-utbrottet | 2024/05/13 | M1.5 |
| Senaste geomagnetiska stormen | 2024/05/12 | Kp7 (G3) |
| Fläckfria dagar | |
|---|---|
| Senaste dag utan solfläckar | 2022/06/08 |
| Månadsvis faktiskt antal solfläckar | |
|---|---|
| april 2024 | 136.5 +31.6 |
| maj 2024 | 144.3 +7.8 |
| Last 30 days | 176 +81.6 |