Hvezdáreň Roztoky

March 26 – April 1, 2021

Solar activity forecast for the period March 26 – April 1, 2021

Issued: 2021 Mar 25 2100 UTC

Activity level from Mar 26 to Mar 29: mostly very low
X-ray background flux (1.0-8.0 A): in the range A2.0-B2.0
Radio flux (10.7 cm): a fluctuation in the range 70-95 f.u.
Events: class C (0-1/day), class M (0/period), class X (0/period), proton (0/period)
Relative sunspot number (Ri): in the range 0-45

Activity level from Mar 30 to Apr 1: mostly very low
X-ray background flux (1.0-8.0 A): in the range A2.0-B2.0
Radio flux (10.7 cm): a fluctuation in the range 70-95 f.u.
Events: class C (0-1/day), class M (0/period), class X (0/period), proton (0/period)
Relative sunspot number (Ri): in the range 0-45

Jozef Lesko
Roztoky Observatory, Slovak Republic
e-mail: safor (at) protonmail.ch

Geomagnetic activity forecast for the period March 26 – April 1, 2021

Issued: 2021 Mar 25 2130 UTC

Quiet to unsettled: Mar 26 – 27
Quiet to active: Mar 28 – Apr 1

Jozef Lesko
Roztoky Observatory, Slovak Republic
e-mail: safor (at) protonmail.ch