{"id":"S85008957","label":"Astronautics--Optical communication systems","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85008957","normalized_label":"astronautics--optical communication systems","broader":["http://id.loc.gov/authorities/subjects/sh85008951","http://id.loc.gov/authorities/subjects/sh85074773","http://id.loc.gov/authorities/subjects/sh85095142","http://id.loc.gov/authorities/subjects/sh85125944"],"aliases":["Optical space communication systems","Space optical communication systems"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85008957","provider":"lcsh","revision":"1b268785db04d74c","taxonomy_revision":"f050b5d4780b1289","title":"Astronautics--Optical communication systems","url":"/topics/S85008957","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"10126356957355983360","address_version":"morton4x16-v1","coordinates":[0,20,17544,62464],"answer_status":"Directory metadata; local answer requires separate source review","truth_status":"Subject descriptor, not a factual answer or a demonstrated knowledge gap","reviewed_answer":null}