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Daily bulletin on solar and geomagnetic activity from the SIDC

Випущено: 2019 May 03 1230 UTC

SIDC Forecast

Сонячні спалахи

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

Geomagnetism

Quiet (A<20 and K<4)

Сонячні протони

Quiet

	10cm flux	Ap
03 May 2019	069	010
04 May 2019	068	005
05 May 2019	068	006

Bulletin

Solar activity is still low, but the background X-ray flux has slightly increased due to the active region that is in the course of rotation to the visible side of the Sun. During last 24 hours one weak B-class flare was reported. We expect the low level of solar flaring activity to persist in the coming hours, with B-class flares expected and C-class flares possible but not very probable. During last 24 hours no Earth directed CMEs have been observed and the solar protons remained at background level. The solar wind speed is about 440 km/s and the interplanetary magnetic field magnitude presently amounts 4 nT. Small equatorial coronal hole of negative polarity has reached central meridian this morning. The associated fast solar wind is expected to arrive at the Earth on May 6. The geomagnetic conditions are presently quiet to unsettled (local station at Dourbes and NOAA reported K=3 and Kp=2, respectively) and we expect them to stay so in the coming hours.

Today's estimated international sunspot number (ISN): 000, based on 17 stations.

Solar indices for 02 May 2019

Wolf number Catania	///
10cm solar flux	///
AK Chambon La Forêt	///
AK Wingst	///
Estimated Ap	///
Estimated international sunspot number	000 - Based on 26 stations

Noticeable events summary

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

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