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

1 KP-INDEX

Non tranquillo Tempesta geomagnetica

KP-PLANETARY INDEX

No Aurora

Indicatori di Radio Aurora

3 A-INDEX

Non tranquillo Tempesta

NON ATTIVO

No Radio Aurora




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