X  Sluiten Zichtbaar Aurora Borealis/Noorderlicht en VHF Radio Aurora-indicatoren
Geomagnetische Storm

4 KP-INDEX

Kleinere G1 Geomagnetische Storm

KP-PLANETARY INDEX

High Latitude
Aurora Viewing Possible

Radio Aurora Indicatoren

22 A-INDEX

Kleinere G1 Zware storm

RADIO AURORA ACTIEF

High Latitude Radio Aurora
50-144MHZ Mogelijk




KP-INDEX Informatie

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 Informatie

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 .


Gegevens afkomstig van http://services.swpc.noaa.gov  ©2020