Het archief bekijken van maandag 31 maart 2014

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2014 Mar 31 1303 UTC

SIDC Prognose

Zonnevlammen

Eruptive (C-class flares expected, probability >=50%)

Geomagnetisme

Active conditions expected (A>=20 or K=4)

Proton Flux monitor

Quiet

	10cm flux	Ap
31 Mar 2014	151	007
01 Apr 2014	150	013
02 Apr 2014	150	013

Bulletin

The most prominent flaring activity of the past 24 hours was an M1.4 flare in NOAA AR 2014 with peak time at 8:07 UT and a C7.6 flare in NOAA AR 2017 with peak at 21:15 UT on March 30. NOAA AR 2026 produced a further number of C flares. C flaring activity is expected to continue over the next 48 hours, with a slight chance for an M flare. Yesterdays M2.1 flare in NOAA AR 2017 which peaked at 11:55 UT on March 30 was associated with a partial halo CME, first visible in the LASCO C2 field of view at 12:24 UT. The CME had an angular width of about 170 degrees and a speed of around 500 km/s (as determined by the CACTUS software). Although the bulk of the CME mass was expelled in NorthWest direction of the Sun-Earth line, an equatorial component was present. A glancing blow from this partial halo CME is possible and can be expected early on April 3. Both the C7.6 flare in AR 2014 and the M1.4 flare in AR 2014 had eruptions associated with them, but preliminary analysis with STEREO COR2 ahead seems to indicate that they had a relatively small angular width and are therefore not expected to become geoeffective. The solar wind speed is steady at 400 km/s with the magnetic field at around 4 nT. Geomagnetic conditions are quiet to moderate, with Kp not above 2, while the local K Dourbes reaching 3.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 083, gebaseerd op 17 stations.

Zon indexen voor 30 Mar 2014

Wolfgetal Catania	///
10cm zonneflux	148
AK Chambon La Forêt	009
AK Wingst	006
Geschatte Ap	005
Geschat internationaal zonnevlekkengetal	064 - Gebaseerd op 25 stations

Overzicht opvallende gebeurtenissen

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

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