Viewing archive of Thursday, 26 December 2019

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2019 Dec 26 1231 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
26 Dec 2019	072	007
27 Dec 2019	071	007
28 Dec 2019	070	007

Bulletin

The two active regions visible on the sun (NOAA ARs 2753 and 2754) have decayed and not produced any activity. Solar activity has been very low, no flares in the past 24 h. Signs of an eruption, dimmings and EUV wave, can be seen around 05:00 UT on December 24 from a region (not a numbered active region) close to N10W50. Nevertheless, no CME is seen in coronagraph images.

No Earth directed CMEs in past 24 h. Solar protons have remained at background levels over the past 24 h.

The solar wind speed is at 400 km/s with interplanetary magnetic field magnitude of 3 nT. Geomagnetic conditions have been quiet and expected to remain so.

Today's estimated international sunspot number (ISN): 011, based on 08 stations.

Solar indices for 25 Dec 2019

Wolf number Catania	///
10cm solar flux	072
AK Chambon La Forêt	///
AK Wingst	004
Estimated Ap	003
Estimated international sunspot number	025 - 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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