There seems to be some anomaly on my daily stats for 4/29. My hourly stats look ok (except for the persistent intermittent hourly holes) but the two week running daily stats show near zero for that day. I have a 2nd site that is virtually the same as this one except for a different antenna and the stats for that site are fine for that date. Any clues?
http://flightaware.com/adsb/stats/user/tonyscanga#stats-28577