. . "Center for Orbital and Re-entry Debris Studies" . "9.7E8" . . . . . . . . . "the Aerospace Corporation" . . . . . . . . . "The Aerospace Corporation" . "Aerospace Corporation" . . "1960-06-03" . . . "Aerospace FFRDC" . "Aerospace" . . . . . . . . . . . . . . . . . "3600" . "Center for Orbital and Reentry Debris Studies" . "The Aerospace Corporation#Center for Orbital and Reentry Debris Studies" . . . . . . . . . "The Aerospace Corporation" . . . . . . "1960" . . . .