Перегляд архіву пʼятниця, 14 червня 2019

Daily bulletin on solar and geomagnetic activity from the SIDC

Випущено: 2019 Jun 14 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
14 Jun 2019	068	011
15 Jun 2019	067	006
16 Jun 2019	067	003

Bulletin

Solar activity was at very low levels. No sunspots were present on the visible solar disk. No coronal mass ejections (CME) were observed over the last 24 hours. The greater than 10 MeV proton flux was at nominal values. A poorly defined, patchy negative polarity equatorial coronal hole (CH) is transiting the central meridian.

Solar activity is expected to remain at very low levels.

The earth environment remained under the influence of the solar wind stream from a positive polarity CH. Solar wind strengthened somewhat, with its speed gradually increasing from its initial 300-360 km/s to 440-490 km/s from 20UT onwards (DSCOVR). Bz varied mostly between -5 and +5 nT, showing more pronounced excursions between -7 and +7 nT during the 20-02UT interval. The interplanetary magnetic field was directed away from the Sun (positive sector). Quiet to unsettled geomagnetic conditions were observed, with the Kp-index reaching active levels during the 21-24UT interval.

Quiet to unsettled geomagnetic conditions are expected to continue, with still a chance on an isolated active episode.

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

Solar indices for 13 Jun 2019

Wolf number Catania	000
10cm solar flux	068
AK Chambon La Forêt	019
AK Wingst	012
Estimated Ap	011
Estimated international sunspot number	000 - Based on 30 stations

Noticeable events summary

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

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