Viewing archive of Thursday, 5 June 2014

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2014 Jun 05 1310 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

	10cm flux	Ap
05 Jun 2014	105	006
06 Jun 2014	105	013
07 Jun 2014	105	014

Bulletin

The background of the X-ray flux measured by GOES was at the B-class level. Other than a few B-class flares, no flares were observed. CACTus detected a CME in LASCO/C2 coronagraphic images at 15:24 UT on 4 June, associated with a large filament eruption in the southeastern quadrant. The CME extended to a halo CME, of which the largest portion is propagating with a speed of 400 km/s (CACTus estimate) south of the Sun- Earth line. Further analysis will be needed to determine any potential impact on the Earth environment. Solar wind conditions observed by ACE were stable with a solar wind speed around 350 km/s and a magnitude of the interplanetary magnetic field ranged from 0 to 6 nT. Quiet geomagnetic conditions were observed and are expected to continue until the arrival of a southern coronal hole high speed stream. This arrival might result in time slots with unsettled to active geomagnetic conditions from the afternoon of 6 June on.

Today's estimated international sunspot number (ISN): 062, based on 11 stations.

Solar indices for 04 Jun 2014

Wolf number Catania	///
10cm solar flux	105
AK Chambon La Forêt	010
AK Wingst	007
Estimated Ap	006
Estimated international sunspot number	047 - Based on 19 stations

Noticeable events summary

Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive

All times in UTC

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