Viewing archive of Friday, 25 December 2015

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2015 Dec 25 1257 UTC

SIDC Forecast

Valid from 1230 UTC, 25 Dec 2015 until 27 Dec 2015
Solar flares

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

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

10cm fluxAp
25 Dec 2015132006
26 Dec 2015131006
27 Dec 2015130005

Bulletin

Only two weak C-class flares were observed during the past 24 hours, both in the NOAA AR 2473 (Catania number 5). The strongest flare was the C2.1 flare peaking at 09:35 UT. We expect flaring activity on the C-level, with an isolated M-class flare possible but unlikely. The Earth is currently inside a solar wind flow with an intermediate speed (around 480 km/s). The interplanetary magnetic field magnitude is average (5-6 nT). The geomagnetic conditions are on the quiet to unsettled levels and are expected to remain so.

Today's estimated international sunspot number (ISN): 084, based on 09 stations.

Solar indices for 24 Dec 2015

Wolf number Catania///
10cm solar flux133
AK Chambon La Forêt///
AK Wingst012
Estimated Ap011
Estimated international sunspot number062 - Based on 20 stations

Noticeable events summary

DayBeginMaxEndLocStrengthOP10cmCatania/NOAARadio burst types
None

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

All times in UTC

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