Перегляд архіву субота, 15 червня 2019

Daily bulletin on solar and geomagnetic activity from the SIDC

Випущено: 2019 Jun 15 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
15 Jun 2019	068	003
16 Jun 2019	067	003
17 Jun 2019	067	016

Bulletin

Solar activity was at very low levels. The solar disk was spotless. No coronal mass ejections (CME) were observed over the last 24 hours. The greater than 10 MeV proton flux was at nominal values. A diffuse and fragmented negative polarity equatorial coronal hole (CH) is transiting the central meridian.

Solar activity is expected to remain at very low levels.

The earth environment is exiting the wind stream from the positive polarity CH. Solar wind decreased from about 475 km/s to its current 380 km/s (DSCOVR). Bz varied mostly between -4 and +3 nT. The interplanetary magnetic field was mostly directed away from the Sun (positive sector). Quiet geomagnetic conditions were observed.

Mostly quiet geomagnetic conditions are expected. The arrival of the wind streams associated with the negative polarity CHs, currently expected for 17 June, may drive geomagnetic activity to active levels, with a minor storming episode not excluded.

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

Solar indices for 14 Jun 2019

Wolf number Catania	///
10cm solar flux	068
AK Chambon La Forêt	009
AK Wingst	007
Estimated Ap	008
Estimated international sunspot number	000 - Based on 29 stations

Noticeable events summary

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

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