(mod note: conversation moved from SpaceX Falcon 9 FT launch - CRS-10 - LC-39A) Can someone please help me understand the exact trajectory of the first stage from MECO to landing. I have replayed this over a dozen times and I am still lost. - When MECO happens how far downrange is the rocket? The telemetry shown on the video only has speed and altitude but nothing about how far down range? - The boostback burn apparently starts at T+3:00 and burns for exactly 30 seconds, but if you look at the video there are no flames coming out of the nozzle in the bottom.. atleast not visible from the camera angle. - When the boostback burn happens does the rocket tilt sideways parallel to ground? And at that point, is the vertical velocity zero? - Obviously after MECO the first stage continues to climb due to inertia. So at some point it has to lose all the vertical speed and also the horizontal speed, so that it can come back. When do these events happen? Looking at the video it is kind of hard to get a sense how this all works out, unless there is a camera that captures from a plane high up and on a clear day. ideally it will be great to get a telemetry data from MECO for every second, on a) horizontal speed b) vertical speed c) position in 3d coordinates and d) attitude of the rocket itself.