ISS transit of Mars, September 14, 2020

The International Space Station (ISS) transits Mars, as captured from San Diego, CA on September 14, 2020 at 05:15:47PDT (12:15:47UT). This required being positioned exactly on the line shown in the map in the video, to within less than 100m accuracy on the ground (Calsky reported the path width of the transit as 90m, so 45m on each side of centerline). This is complicated by the fact that the ISS orbit is inherently unstable in low Earth orbit, which causes the predicted ground path to change by small am