#PlaneCatcher v2.0 created by Heeshung
#Aircraft registration calculation algorithms ported to Python from https://github.com/openskynetwork/dump1090-hptoa/blob/master/public_html/registrations.js #Algorithms licensed under GPL, v2 or later - Copyright (C) 2012 by Salvatore Sanfilippo antirez@gmail.com
#Daemon script ported from https://web.archive.org/web/20160305151936/http://www.jejik.com/articles/2007/02/a_simple_unix_linux_daemon_in_python/