Перегляд архіву середа, 17 липня 2019

Daily bulletin on solar and geomagnetic activity from the SIDC

Випущено: 2019 Jul 17 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
17 Jul 2019	067	006
18 Jul 2019	068	005
19 Jul 2019	068	005

Bulletin

Solar activity was at very low levels. The Sun remains spotless and no flares have been observed. No Earth directed coronal mass ejections (CME) were observed over the last 24 hours in the available coronagraph imagery. The greater than 10 MeV proton flux remained at background levels over the past 24 hours. Solar activity is expected to remain at very low levels.

The solar wind speed gradually increased over the period from 370 to a maximum of around 500 km/s at 07:15 UT (ACE). The Bz varied between -5 and +4 nT. The interplanetary magnetic field was predominantly directed away from the Sun (positive sector). Quiet to unsettled geomagnetic conditions were observed, with the Kp index (NOAA) ranging between 0-2 and the local K index (Dourbes) ranging between 1-3 over the past 24 hours.

Quiet geomagnetic conditions are expected with possible isolated unsettled intervals.

Today's estimated international sunspot number (ISN): 000, based on 22 stations.

Solar indices for 16 Jul 2019

Wolf number Catania	000
10cm solar flux	067
AK Chambon La Forêt	013
AK Wingst	006
Estimated Ap	006
Estimated international sunspot number	000 - Based on 27 stations

Noticeable events summary

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

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