Viewing archive of Tuesday, 26 April 2016

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2016 Apr 26 1230 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

	10cm flux	Ap
26 Apr 2016	082	007
27 Apr 2016	084	007
28 Apr 2016	086	007

Bulletin

Solar activity is very low, only B-class flaring in past 24 h. A bipolar AR (Catania 64, no NOAA number) rotated into view slightly northeast of NOAA AR 2535 (Catania 63) and has produced most of the latest B-class flaring. C-class flares are possible as this region evolves in the coming hours. Geomagnetic conditions have ranged from quiet to unsettled in the past 24 h. The solar wind speed is at 500 km/s with interplanetary magnetic field magnitude around 4 nT. Quiet geomagnetic conditions are expected.

Today's estimated international sunspot number (ISN): 059, based on 17 stations.

Solar indices for 25 Apr 2016

Wolf number Catania	///
10cm solar flux	082
AK Chambon La Forêt	008
AK Wingst	005
Estimated Ap	005
Estimated international sunspot number	045 - Based on 22 stations

Noticeable events summary

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

All times in UTC

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