Viewing archive of Wednesday, 27 November 2019

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2019 Nov 27 1231 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

	10cm flux	Ap
27 Nov 2019	071	007
28 Nov 2019	071	013
29 Nov 2019	070	006

Bulletin

Solar activity was at very low levels. The Sun was spotless and will most likely remain so. A small active region is rotating over the east limb (SDO/AIA). No earth-directed coronal mass ejections (CMEs) have been observed in available coronagraphic imagery. The greater than 10 MeV proton flux was at nominal values.

Solar activity is expected to remain at very low levels.

Solar wind speed varied between 420 and 380 km/s (ACE). Bz varied between -4 and + 3 nT. The interplanetary magnetic field (phi angle) was mostly directed away from the Sun (positive sector). Geomagnetic activity was at quiet levels (both Kp and K Dourbes).

Geomagnetic activity is expected to be at quiet to unsettled levels. The earth environment is expected to become affected by the wind stream from the negative polarity coronal hole later today or tomorrow, increasing the possibility on an active episode.

Today's estimated international sunspot number (ISN): 000, based on 06 stations.

Solar indices for 26 Nov 2019

Wolf number Catania	000
10cm solar flux	070
AK Chambon La Forêt	004
AK Wingst	002
Estimated Ap	002
Estimated international sunspot number	000 - Based on 13 stations

Noticeable events summary

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

All times in UTC

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