April 14 – 20, 2023

Solar activity forecast for the period April 14 – 20, 2023

Issued: 2023 Apr 13 2100 UTC

Activity level from Apr 14 to Apr 17: low to high
X-ray background flux (1.0-8.0 A): in the range B6.0-C3.0
Radio flux (10.7 cm): a fluctuation in the range 135-195 f.u.
Events: class C (2-20/day), class M (0-6/day), class X (0-1/period), proton (0/period)
Relative sunspot number (Ri): in the range 60-175

Activity level from Apr 18 to Apr 20: low to high
X-ray background flux (1.0-8.0 A): in the range B6.0-C3.0
Radio flux (10.7 cm): a fluctuation in the range 135-195 f.u.
Events: class C (2-20/day), class M (0-6/day), class X (0-1/period), proton (0/period)
Relative sunspot number (Ri): in the range 60-175

Jozef Lesko
Roztoky Observatory, Slovak Republic
https://roztoky.space/category/predpovede/
e-mail: safor (at) protonmail.ch

Geomagnetic activity forecast for the period April 14 – 20, 2023

Issued: 2023 Apr 13 2130 UTC

Quiet to unsettled: Apr 14 – 17
Quiet to active: Apr 18 – 20

Jozef Lesko
Roztoky Observatory, Slovak Republic
https://roztoky.space/category/predpovede/
e-mail: safor (at) protonmail.ch