3 KP-INDEX
Quiet No Geomagnetic Storm
KP-PLANETARY INDEX
No Aurora
5 A-INDEX
Quiet No Storm
NOT ACTIVE
No Radio Aurora
KP-INDEX
figure provides a good indicator of viewing the
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 .