X  Chiuso Visual Aurora Borealis / Northern Lights e Indicatori di VHF e Radio Aurora
Tempesta geomagnetica

4 KP-INDEX

Minore G1 Tempesta geomagnetica

KP-PLANETARY INDEX

High Latitude Aurora Viewing Possible

Indicatori di Radio Aurora

22 A-INDEX

Minore G1 Tempesta

RADIO AURORA ATTIVO

Ad alta latitudine Radio Aurora
50-144MHZ Possibile




KP-INDEX Informazione

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 Informazione

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 .


Dati forniti da http://services.swpc.noaa.gov  ©2020