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Daily bulletin on solar and geomagnetic activity from the SIDC

Випущено: 2019 Jul 01 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
01 Jul 2019	067	015
02 Jul 2019	067	007
03 Jul 2019	067	007

Bulletin

The Sun did not produce any flares in the past 24 hours. A Bxo (beta) sunspot region emerged around 15h UT on June 30 near S25E0, but had all but decayed again on July 1, meaning the visible side of the Sun is spotless again. The chance for a C flare in the next 24 hours is estimated at only 1%.

No Earth-directed Coronal Mass Ejections (CMEs) were observed in available coronagraphic imagery.

The greater than 10 MeV proton flux was at nominal levels in the past 24 hours, and is expected to stay at nominal levels in the next 24 hours.

Solar wind speed near Earth as registered by ACE varied between about 300 and 390 km/s in the past 24 hours. The Interplanetary Magnetic Field (IMF) was predominantly directed towards the Sun and its magnitude varied between about 2 and 9 nT (with values unknown during a data gap from about 3:20 till 10:20 UT on July 1), with current values around 7 nT. Bz had some short intervals below -5 nT between about 23h UT on June 30 and the start of the data gap around 3:20 UT on July 1.

Quiet to active geomagnetic conditions (K Dourbes between 1 and 4; NOAA Kp between 0 and 3) were registered in the past 24 hours. Quiet to unsettled geomagnetic levels (K Dourbes < 4) are expected on July 1, 2 and 3, with a chance for active geomagnetic levels (K Dourbes = 4) on July 1 and 2.

Today's estimated international sunspot number (ISN): 007, based on 22 stations.

Solar indices for 30 Jun 2019

Wolf number Catania	///
10cm solar flux	067
AK Chambon La Forêt	012
AK Wingst	006
Estimated Ap	005
Estimated international sunspot number	/// - Based on /// stations

Noticeable events summary

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

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