This deals with photography more than anything so I wasn't entirely sure which forum it's best suited for, hopefully Astronomy is semi-suited. September 1st saw the static test fire of the Falcon9 rocket. Wherein, a reported anomaly in the upper stage o2 tank caused a catastrophic failure, explosion of the vehicle, which destroyed its payload, the AMOS6 Satellite. Original Footage (best/closest view of explosion) Official updates from Space-X http://www.spacex.com/news/2016/09/01/anomaly-updates If you look at the footage of the explosion and freeze frame it just as it happens, you will notice an unidentified object above the space vehicle. It enters from the right side of the screen, and exits shortly after, the explosion happens just as reaches vertical positioning over the rocket. There are a flurry of accusations and hypotheses floating around, about whether or not the object is related to the incident. I was hoping someone might be willing to calculate the size and speed of the object, as it would provide valued insight into the incident. Calculating the size/speed/etc will most likely falsify/validate some ideas floating around. Because of an obvious lack of data, it's very hard to make many conclusions on the video, and the object itself. One idea is that not only did it pass by the rocket, but made a 180 and returned up behind the explosion. Highlighted here in this GIF: https://gfycat.com/MeatyFrigidGalah I was hoping someone can help calculate the size and the speed of the object. A rough calculation of the sound delay, puts it at 4 Kilometres away. Though it might not be very accurate. The launch was at SLC-40 (they are currently modifying 39a to continue operations) http://spacenews.com/spacex-may-shift-falcon-9-launches-to-kscs-pad-39a/ I've been trying to locate the exact position of the http://www.uslaunchreport.com camera, but Im not entirely sure of the accuracy. Here are two different screen caps of the surrounding area, one with Google Earth laying out a 4-5 KM radius. I'm not entirely sure what is/isn't off limits, because the group that films it are veterans, they might have access to areas others don't. http://imgur.com/a/ZUU8r http://imgur.com/a/W5SQ1 Any help would be greatly appreciated. To note Im not looking for any opinions on the validity of the hypothesis, or debunking, or arguing its validity or anything like that. Simply looking for some math to deduce exactly what the object may or may not be, to find out its speed, size etc. Thank you in advance for any help.