No. But catching it at 900 would be strange, as it should be gone within a single 5-sec cycle and even if not, never decrease speed, and even if not, disappear when spawning the Pogrom... curious... And the need for the second picture is obvious, to check if it is indeed the same contact (all are numbered, as you can see).
I'll adjust the timers to hopefully make this detectable only to the Hyperwave Decoder, as radar contact is useless in this case anyway.