Viewing archive of Monday, 13 July 2020

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2020 Jul 13 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
13 Jul 2020	067	011
14 Jul 2020	067	012
15 Jul 2020	068	004

Bulletin

Solar activity was at very low levels and is expected to remain so. The solar disk was spotless.

No earth-directed coronal mass ejections (CMEs) were observed in the available coronagraphic imagery.

The greater than 10 MeV proton flux and the greater than 2 MeV electron flux were at nominal levels during the last 24 hours and are expected to remain so.

The solar wind speed ranged between 280 km/s and 330 km/s (DSCOVR and ACE). The phi angle was initially in the positive sector but switched into the negative sector between 00:30 and 10:15 on July 13. The total magnetic field fluctuated around 4nT for the first half of the period before increasing from 00:30, after the change of phi angle, and reached a maximum of 11 nT. Bz ranged between -9 and +5 nT.

Geomagnetic activity was mostly quiet with a localized unsettled to active period recorded by K-Dourbes (local K Dourbes and NOAA Kp recorded values between 0-4 and 0-2, respectively). Geomagnetic conditions are expected to be mostly quiet, with further unsettled intervals possible on 13 July from coronal hole wind stream effects, and on 14 July from a glancing blow from the 09 July CME. An isolated active interval is not excluded.

Today's estimated international sunspot number (ISN): 000, based on 27 stations.

Solar indices for 12 Jul 2020

Wolf number Catania	///
10cm solar flux	068
AK Chambon La Forêt	008
AK Wingst	003
Estimated Ap	002
Estimated international sunspot number	000 - Based on 36 stations

Noticeable events summary

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

All times in UTC

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