"It was The Observatory at Goonhilly Downs in the guide book when I found it before you were born. "
No it wasn't. For two reasons, one is that it was built as "Goonhilly Satellite Earth Station" not an observatory. It's never been used as an observatory but may in future become an observatory if enough money can be raised for preservation/conversion. The other is that I'm older than the space race, let alone Goonhilly.
Thanks for making the international sign that shows your intellectual status.