Hvezdáreň Roztoky

November 12 – 18, 2021

Solar activity forecast for the period November 12 – 18, 2021

Issued: 2021 Nov 11 2100 UTC

Activity level from Nov 12 to Nov 15: very low to low
X-ray background flux (1.0-8.0 A): in the range A7.0-B6.0
Radio flux (10.7 cm): a fluctuation in the range 80-100 f.u.
Events: class C (0-8/day), class M (0-1/period), class X (0/period), proton (0/period)
Relative sunspot number (Ri): in the range 11-70

Activity level from Nov 16 to Nov 18: very low to low
X-ray background flux (1.0-8.0 A): in the range A7.0-B7.0
Radio flux (10.7 cm): a fluctuation in the range 80-100 f.u.
Events: class C (0-10/day), class M (0-1/day), class X (0/period), proton (0/period)
Relative sunspot number (Ri): in the range 11-70

Jozef Lesko
Roztoky Observatory, Slovak Republic
www.osveta.sk/n/11283/astronomia.html
e-mail: safor (at) protonmail.ch

Geomagnetic activity forecast for the period November 12 – 18, 2021

Issued: 2021 Nov 11 2130 UTC

Quiet: Nov 12 – 13
Quiet to unsettled: Nov 14 – 16
Quiet to active: Nov 17 – 18

Jozef Lesko
Roztoky Observatory, Slovak Republic
www.osveta.sk/n/11283/astronomia.html
e-mail: safor (at) protonmail.ch