Satellites criss-cross the sky all day and night. But normally we only see the ones that reflect sunlight in the darkened sky just after sunset and just before dawn. At other times, how would we know where they are, much less see them? Well, there's an online app, Transit-Finder, that can tell when the International Space Station will cross the Moon or the Sun from any vantage point on Earth. Using it, a 60mm Lunt solar telescope and an ASI120 video camera with 1ms exposures, I captured the ISS crossing the Sun over Adelaide, South Australia, at 1:34pm on Sunday 27 January. My final composite image includes 10 frames from the video, the app information and the identification of sunspot region AR2733.

60mm Lunt Hydrogen-Alpha Telescope
ZWO ASI120 video camera
Skywatcher EQ3-Pro mount

Free Video to JPG Converter to extract the frames containing the ISS
Arcsoft PhotoStudio 5 to manually stack the frames, the transit info, and label the sunspots