Regarding Observation 3526854 …
According to NASA and the Canadian Space Agency, this satellite is no longer active. However many observation waterfalls are marked as good. I suspect the signals are terrestrial.
The key thing to look for is a signal which appears as a vertical-ish line in the waterfall. I agree that a lot of the observations don’t have clear evidence of this particular sat, and many are showing local interference, or other satellites.
An example of a real signal from the sat is in this observation: https://network.satnogs.org/observations/3023489/
I’ve raised this issue on satnogs-network as a potential way of helping with these situations: https://gitlab.com/librespacefoundation/satnogs/satnogs-network/-/issues/782
So, although this satellite was deactivated in 1975, it’s still transmitting a continuous wave beacon?
I do see the straight line in this observation, thus I’ll vet it as good. Thanks.
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