X  Sulje Visuaalinen Aurora Borealis / Revontulet ja VHF Radio Aurora -osoittimet
Geomagneettinen myrsky

1 KP-INDEX

Hiljainen nro Geomagneettinen myrsky

KP-PLANETARY INDEX

Ei auroraa

Radio Aurora -osoittimet

1 A-INDEX

Hiljainen nro Myrsky

EI AKTIIVINEN

Ei radio Aurora




KP-INDEX Tiedot

KP-INDEX figure provides a good indicator of viewing the Aurora Borealis or Northern Lights The greater the KP-Index the higher probability of viewing. The Estimated 3-hour Planetary Kp-index data is collected from ground-based magnetometers.

A-INDEX Tiedot

A-INDEX is an indicator of possible enhanced VHF radio signal communication at a range of upto 1000 miles or more. During strong solar activity frequencies from 28 to 433MHZ or higher allowing radio communications to be possible at mid to high latitudes .


Tiedot tarjoaa http://services.swpc.noaa.gov  ©2020