AAVSO Sudden Ionospheric Disturbance Report
December 2017

Observers:
A118	A119	A120	A122	A125	A131	A134	A138	A141	
A142	A143	A146	A147	A149	A94	A96	A97	

YYMMDD		Event Peak		Importance
171228		2230			2+	A122  - XRA



**************************************************
Importance Summary - Dec 2017
	1- events:  0
	1  events:  0
	1+ events:  0
	2  events:  0
	2+ events:  1
	3  events:  0
	3+ events:  0
 ------------------
   Total events: 01