Summary and Forecast

Solar Summary

(last updated 20 Jul 2019 23:31 UT)

Activity 20 Jul: Very low Flares: none. Observed 10.7 cm flux/Equivalent Sunspot Number for 20 Jul: 67/0

Solar Forecast

(last updated 20 Jul 2019 23:31 UT)

21 Jul 22 Jul 23 Jul Activity Very low Very low Very low Fadeouts None expected None expected None expected 10.7cm/SSN 67/0 67/0 67/0 COMMENT: Solar activity remained very low on UT day 20 July. The solar disk visible from the Earthside is spotless. There were no Earth-directed CMEs observed in the available coronagraph imagery. On UT day 20 July, the solar wind speed stayed between 315 km/s and 330 km/s, the total IMF (Bt) varied mostly between 1 nT and 5 nT, the north-south component of the IMF (Bz) varied mostly in the range +3/-1 nT. The particle density varied between 0.2 ppcc and 3.5 ppcc during most parts of this day. Very low solar activity is expected for the next 3 UT days,21-23 July.

Solar Activity levels are explained in the SWS Solar Terrestrial Glossary.