My personal friend Manfred, XQ6FOD, is fairly famous for making the old FODTRACK program in the early 90's for DOS, and then later for Windows versions. But almost no one knows that he also made
an unpublished companion software called FODSKED which I think does exactly what you are referring to. During the past few days, in his location he had several good passes of the 4 SSTV satellites, but they were during the night!! So he set it up and worked the various satellites automatically while he was sleeping. He sent about 8 or 10 images to me that he recorded of the sats that were transmitting SSTV. I think he got 2 or 3 of the four sats. The images were not perfect because he lives on the side of the Andes mountains and has trees in all directions in addition to the east being totally blocked by the mountain. It requires a 4WD to get to his home, and I have visited him there on multiple occasions. 73, Dean, PU7MOJ