Pearl Ruby was a piggy-back experiment flown on the last KH-9 Hexagon reconnaissance satellite.
Possibly Pearl Ruby was to test advanced Infra-red sensors on orbit.
This subsatellite was to be deployed from a rack mounted on the KH-9 Hexagon reconnaissance satellites and to use a solid-fuel kick-motor to maneuver itself into the operational orbit after deployment, but it was lost in a launch failure.
|Type / Application:||Technology ?|
|Configuration:||mod. P-11 bus ?|
|Power:||Solar cells, batteries|
|Pearl Ruby||1986-F03||18.04.1986||Va SLC-4E||F||Titan-34D||with KH-9 20|