April 12 – 18, 2024

Solar activity forecast for the period April 12 – 18, 2024

Issued: 2024 Apr 11 2100 UTC

Activity level from Apr 12 to Apr 15: low to moderate
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 135-190 f.u.
Events: class C (2-22/day), class M (0-4/day), class X (0/day), proton (0/period)
Relative sunspot number (Ri): in the range 60-170

Activity level from Apr 16 to Apr 18: low to high
X-ray background flux (1.0-8.0 A): in the range B7.0-C3.0
Radio flux (10.7 cm): a fluctuation in the range 140-195 f.u.
Events: class C (2-22/day), class M (0-5/day), class X (0-1/day), proton (0/period)
Relative sunspot number (Ri): in the range 65-175

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

Geomagnetic activity forecast for the period April 12 – 18, 2024

Issued: 2024 Apr 11 2130 UTC

Quiet to active: Apr 12 – 18

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