Map of the St. Louis area showing the position and track of the aircraft described in the post.

🇳🇱 PH-BKQ - BOEING 787-10 Dreamliner - Klm Royal Dutch Airlines KLM661/KL661, Amsterdam Schiphol (AMS) to George Bush Intcntl/Houston (IAH) - 4.0 mi away @ 35425 ft, heading SSW at 632 mph. Spotted for first time! [11:38:46 AM CST] #485F84 #PH_BKQ #B78X #KLM #KLM661 #KL661 #autopilot #ADSB #ADSBbot