Het archief bekijken van zondag 15 maart 2015

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2015 Mar 15 1224 UTC

SIDC Prognose

Zonnevlammen

Active (M-class flares expected, probability >=50%)

Geomagnetisme

Quiet (A<20 and K<4)

Proton Flux monitor

Quiet

	10cm flux	Ap
15 Mar 2015	116	008
16 Mar 2015	115	010
17 Mar 2015	115	010

Bulletin

Over the past 24 hours there were several C-class flares and 1 M-class flare which were produced by NOAA AR (Active Region) 2297, which is currently located at S15W25, and is classified as a Beta-Gamma-Delta region under the Mount Wilson magnetic classification system. The largest flare recorded over the past 24 hours, produced by AR 2297, was an M1.0 flare on 2015-Mar-15 peaking at 09:40UT. ARs 2297 and 2299, have shown little magnetic evolution with a small amount of flux emergence, which may lead to future eruptions. AR 2301, which emerged near disk center on 2015-Mar-14, has shown evidence of a small amount of flux emergence, but has remained small. A partial halo coronal mass ejection (CME) was reported by CACTus and first seen in LASCO/C2 images at 02:00UT, this CME was related to a C9.1 flare from NOAA AR 2297 peaking at 02:13UT, see below for details. There is a large filament located between S15W90 and S50W05, however this has remained, and appears, stable. The solar wind speed has decreased over the past 24 hours from 350 km/s to 300 km/s. The total magnetic field has remained roughly constant around 6 nT, and the Bz component has changed from positive (around +5 nT) to negative (around -3 nT) over the past 24 hours. Geomagnetic conditions ranged between Kp index 1-3 (NOAA) and local K index 1-3 (Dourbes) over the past 24 hours. A small shock front was observed by the ACE satellite at 21:00 UT on 2015-Mar-14. A partial halo coronal mass ejection (CME) was reported by CACTus and first seen in LASCO/C2 images at 02:00UT, produced by AR 2297. This CME was related to a C9.1 flare from NOAA 2297 peaking at 02:13UT. The CME had a plane of the sky speed of 712 km/s, and a width of 160 degrees. The bulk of the CME is directed away from Earth to the West, but a glancing blow cannot be ruled out based on current imagery. The CME is estimated to arrive at Earth on 16 March at 18:00UT (+/- 12 hours).

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 053, gebaseerd op 06 stations.

Zon indexen voor 14 Mar 2015

Wolfgetal Catania	///
10cm zonneflux	116
AK Chambon La Forêt	///
AK Wingst	006
Geschatte Ap	006
Geschat internationaal zonnevlekkengetal	043 - Gebaseerd op 15 stations

Overzicht opvallende gebeurtenissen

Aangeboden door het Solar Influences Data Analysis Center© - SIDC - Verwerkt door SpaceWeatherLive

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