Do you really want to send Blackavar a message saying you like their work?
The KH-9 was one of the Keyhole series of IMINT satellites, using a film camera. The last launch of a KH-9 occured on April 18, 1986. 20 KH-11s in all were launched, with 19 successful launches and 1 failure.
Need help? firstname.lastname@example.org