I analysed the video from the orbital mechanics point of view1. the path seems to follow a latitude line rather than a great circle ....that's impossible orbit path or even a route of travel2. with pixel count the crafts are around 18 Km AGL, using your advanced curvature calculator with the moon radius, that gives 250 Km from the crafts to the horizon, it took at least 2 seconds from the moment it appeared on the horizon until it reached it's highest point above the moon's horizon from our perspective, that gives it a speed of 125 Km/s3. to orbit the moon (regardless to the unrealistic orbit path) at 125Km/s , the crafts require downward thrust equivalent to 917 Gs (g for earth gravity) to counter the centrifugal force (centrifugal acceleration for that speed and radius is around 9000 m/s^2 )my video: