Viewing archive of Monday, 5 October 2020

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2020 Oct 05 1230 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
05 Oct 2020	071	005
06 Oct 2020	071	007
07 Oct 2020	071	007

Bulletin

Solar X-ray flux remained below B level throughout the period. There are no active regions on disk and chances for flaring at C level are very low.

No Earth directed Coronal Mass Ejections (CME's) have been observed in coronagraph data.

The greater than 10 MeV proton flux was at nominal levels in the past 24 hours, and is expected to remain so in the next 24 hours. The greater than 2 MeV electron flux is above 10^4 pfu, continuously exceeding the 10^3 pfu threshold in the past 24 hours. The electron flux is expected to remain elevated over the next days.

Solar wind is in a near nominal regime. Solar wind speed decreased from around 400 km/s at the start of the period to a minimum of 317 km/s and is now around 350 km/s. The total magnetic field was mainly below 5 nT, but currently reaches close to 6nT. The Bz component has been variable with values reaching -5nT, this morning. The magnetic field phi angle indicated connection with the positive sector (magnetic field oriented away from the Sun), though was somewhat more variable this morning. Near nominal Solar wind conditions are expected over the next days.

Geomagnetic conditions were quiet (NOAA Kp 0-1 and local K Dourbes 0-2). Quiet geomagnetic conditions are expected for the next days.

Today's estimated international sunspot number (ISN): 000, based on 14 stations.

Solar indices for 04 Oct 2020

Wolf number Catania	///
10cm solar flux	071
AK Chambon La Forêt	008
AK Wingst	004
Estimated Ap	004
Estimated international sunspot number	000 - Based on 23 stations

Noticeable events summary

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

All times in UTC

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