Viewing archive of Thursday, 25 April 2019

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2019 Apr 25 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
25 Apr 2019	069	006
26 Apr 2019	069	007
27 Apr 2019	069	011

Bulletin

No flares in the past 24 h. No active regions visible on the solar disk. Solar activity is expected to be low.

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

The solar wind speed is at 420 km/s with interplanetary magnetic field magnitude of 5 nT. Geomagnetic conditions have been quiet. The solar wind emanating from a small negative polarity equatorial coronal hole may affect the Earth in 48 h (up to k = 4), quiet conditions expected until then.

Today's estimated international sunspot number (ISN): 000, based on 21 stations.

Solar indices for 24 Apr 2019

Wolf number Catania	000
10cm solar flux	069
AK Chambon La Forêt	011
AK Wingst	///
Estimated Ap	011
Estimated international sunspot number	000 - 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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