C Cover name CA CORONA sequential numbe CB NRO BYEMAN name CC CIA/NRO camera-based name CM NRO Mission ID IA Informal name J Jonathan's own codename, not an official name JP Jonathan's own codename, PNAME M Manufacturer name N Primary postlaunch name NA NASA 1959 scheme (S-1) NA2 NASA 1959 scheme, alt PLname NB NASA 1960s prelaunch NC NASA 1960s postlaunch NN Nickname, honorary name P Generic PNAME PC PNAME constellation designation PN STP designation PNX STP designation with override RA Soviet/Russian civilian 'article' designation RA2 Soviet/Russian civilian 'article' designation [alt] RB Soviet/Russian military 'article' designation RC Soviet/Russian manufacturer name RD Soviet/Russian military name RE Soviet descriptive name STN Station (ISS) module descriptor U USA (US military) code name. UA Early US program name (failures get numbered), Roman numeral UB Early US program name (failures get numbered), Arabic numeral UC Alternate US program name (Able etc) UF FTV (Agena serial number scheme) UI Unidentifed object? Mistag? JCM label VA Vanguard descriptive name VB Vanguard Group name