Týždenná predpoveď
slnečnej aktivity

Solar activity forecast for the period February 9 – February 15, 2018
Issued: 2018 Feb 8 2130 UTC

Activity level from Feb 9 to Feb 12: very low to 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 70-90 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 11-30

Activity level from Feb 13 to Feb 15: very low to 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 70-90 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 0-30

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

Geomagnetic activity forecast for the period February 9 – February 15, 2018, 2018
Issued: 2018 Feb 8 2200 UTC

Quiet: Feb 12 – 15
Quiet to active: Feb 9 – 11

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