Viewing archive of Thursday, 16 June 2016

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2016 Jun 16 1230 UTC

SIDC Forecast

Solar flares

Quiet conditions (<50% probability of C-class flares)

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

	10cm flux	Ap
16 Jun 2016	086	012
17 Jun 2016	085	007
18 Jun 2016	084	007

Bulletin

Solar flaring activity was very low, with X-ray flux remaining below C level. Catania group 90 (NOAA 2554) rotated over the West limb and Catania group 92 remains a simple unipolar sunspot group. All other groups are insignificant. X-ray levels are expected to remain below C level. No Earth directed CMEs have been observed in coronagraph data. Solar wind is recovering from the high speed stream influence of the positive polarity coronal hole. Solar wind speed decayed to currently still slightly elevated values around 550 km/s while the total magnetic field strength is back at nominal values of just below 6nT. The Bz component has been mostly positive with the phi angle indicating positive polarity. Geomagnetic conditions were quiet to unsettled and expected to remain so as the solar wind speed further decreases.

Today's estimated international sunspot number (ISN): 031, based on 15 stations.

Solar indices for 15 Jun 2016

Wolf number Catania	082
10cm solar flux	087
AK Chambon La Forêt	017
AK Wingst	014
Estimated Ap	016
Estimated international sunspot number	036 - Based on 30 stations

Noticeable events summary

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

All times in UTC

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