urn:nasa:pds:context:facility:observatory.ctio-cerro_tololo 1.2 1.22.0.0 Product_Context urn:nasa:pds:context:facility:observatory.ctio CTIO 2026-07-07 1.2 Removed duplicate Internal_Reference entries from Reference_List. 2025-01-07 1.1 Updated schema version. Adding missing "investigation" references. Adding missing "instrument" references. Adding missing "telescope" references. 2021-11-05 1.0 Initial urn:nasa:pds:context:telescope:ctio-cerro_tololo.victorblanco_4m0 facility_to_telescope urn:nasa:pds:context:telescope:ctio-cerro_tololo.soar_4m1 facility_to_telescope urn:nasa:pds:context:telescope:ctio-cerro_tololo.smarts_1m50 facility_to_telescope urn:nasa:pds:context:telescope:ctio-cerro_tololo.smarts_1m0 facility_to_telescope urn:nasa:pds:context:telescope:ctio-cerro_tololo.2mass_1m3 facility_to_telescope urn:nasa:pds:context:instrument:ctio-cerro_tololo.victorblanco_4m0.decam facility_to_instrument urn:nasa:pds:context:instrument:ctio-cerro_tololo.soar_4m1.soi facility_to_instrument urn:nasa:pds:context:instrument:ctio-cerro_tololo.soar_4m1.ghts facility_to_instrument urn:nasa:pds:context:instrument:ctio-cerro_tololo.smarts_1m50.cassegrainspec facility_to_instrument urn:nasa:pds:context:instrument:ctio-cerro_tololo.smarts_1m0.fruttispec facility_to_instrument urn:nasa:pds:context:instrument:ctio-cerro_tololo.2mass_1m3.2masssouth facility_to_instrument urn:nasa:pds:context:investigation:observing_campaign.earth-based-uranus-stellar-occultations facility_to_investigation Cerro Tololo Inter-American Observatory Observatory

Casilla 603, La Serena

Chile Cerro Tololo Inter-American Observatory, located in Chile, is an important research facility in the Southern Hemisphere. It is known for its contributions to optical and infrared astronomy, particularly in the fields of galaxy formation, dark energy, and supernovae.