July 21 – 27, 2023

Solar activity forecast for the period July 21 – 27, 2023

Issued: 2023 Jul 20 2100 UTC

Activity level from Jul 21 to Jul 24: 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 150-210 f.u.
Events: class C (2-20/day), class M (0-8/day), class X (0-1/period), proton (0/period)
Relative sunspot number (Ri): in the range 80-195

Activity level from Jul 25 to Jul 27: 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 150-210 f.u.
Events: class C (2-20/day), class M (0-8/day), class X (0-1/period), proton (0/period)
Relative sunspot number (Ri): in the range 80-195

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

Geomagnetic activity forecast for the period July 21 – 27, 2023

Issued: 2023 Jul 20 2130 UTC

Quiet to active: Jul 21 – 27

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