Solar
FORECAST SOL: Normal green MAG: Moderate yellow ION: Normal green
HomeSolarSolar ConditionsSummary and Forecast Saturday, Sep 26 2020 02:26 UT
Solar Conditions

Summary and Forecast

Solar Summary

(last updated 25 Sep 2020 23:31 UT)

Activity 25 Sep: Very low Flares: none. Observed 10.7 cm flux/Equivalent Sunspot Number for 25 Sep: 73/9

Solar Forecast

(last updated 25 Sep 2020 23:31 UT)

26 Sep 27 Sep 28 Sep Activity Very low Very low Very low Fadeouts None expected None expected None expected 10.7cm/SSN 73/9 73/9 73/9 COMMENT: Solar activity was very low on UT day 25 September. There is one numbered region on the visible disc, 2773 (currently at N30E32). No returning active regions are expected. No Earthbound CMEs were observed in the available coronagraph data. The solar wind speed ranged between 460 and 510 km/s, currently near 480 km/s. For the total IMF (Bt) and its north-south component (Bz) the ranges were 3-8 nT and +2/-6 nT, respectively; Bz was mostly negative. Very low levels of solar activity are expected for 26-28 September. Solar wind parameters are expected to be elevated during 26-28 September in response to coronal hole effects.

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

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