October 3 – 9, 2025

Solar activity forecast for the period October 3 – 9, 2025

Issued: 2025 Oct 2 2100 UTC

Activity level from Oct 3 to Oct 6: low to high
X-ray background flux (1.0-8.0 A): in the range B4.0-C2.0
Radio flux (10.7 cm): a fluctuation in the range 125-200 f.u.
Events: class C: 1-22/day, class M: 0-7/day, class X: 0-1/day, proton: 0-1/period
Relative sunspot number (Ri): in the range 40-200

Activity level from Oct 7 to Oct 9: low to high
X-ray background flux (1.0-8.0 A): in the range B4.0-C2.0
Radio flux (10.7 cm): a fluctuation in the range 115-190 f.u.
Events: class C: 1-22/day, class M: 0-5/day, class X: 0-1/period, proton: 0-1/period
Relative sunspot number (Ri): in the range 30-185

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

Geomagnetic activity forecast for the period October 3 – 9, 2025

Issued: 2025 Oct 2 2130 UTC

Quiet to active: Oct 6 – 9
Unsettled to minor storm: Oct 3 – 5

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