This is the image taken by Dutch pilot Peter Horstink, from his aircraft over Khartoum near 3:15 UT, 2h 15m after launch.
This is probably the Falcon 9 venting fuel.#Zuma pic.twitter.com/EEsl7e1sQP

— Dr Marco Langbroek 💉 #Vaccinate (@Marco_Langbroek) January 8, 2018