Keyhole - friznit/Unofficial-BDB-Wiki GitHub Wiki
The Keyhole (BDB Spyglass) family of optical reconnaissance satellites uses the Agena upper stage as a satellite bus. The cameras have limited capacity and imagery is recovered using a Satellite Recovery Vehicle, nicknamed the "film bucket". Keyhole satellites should be launched into a low altitude sun-synchronous orbit. The series includes the KH-10 Dorian Manned Orbiting Laboratory concept.
Build Notes
- Agena forms part of the satellite so there is no decoupler above the Telemetry Response Unit, with the exception of KH-7, which detaches from the Agena-D and has its own Orbital Control Vehicle.
- KH-4B and KH-8 have a second SRV housed in the dual return capsule adapter.
- The SRV is built as a stack from the top down. It is recommended to put the Capsule pod's "Collect All" action in an Action Group.