urn:nasa:pds:context:telescope:lowell.discovery_4m3 1.2 1.22.0.0 Product_Context Discovery Channel Telescope (DCT) This telescope was originally funded as a partnership with the Discovery Channel (Discovery, Inc.). When ownership was tranferred wholly to Lowell Observatory, the name of the telescope was changed in February 2020 to "Lowell Discovery Telescope". 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 "telescope" references. 2021-08-13 1.0 Created by A.C.Raugh from information downloaded from the Lowell Observatory website on 2021-08-13. urn:nasa:pds:context:facility:observatory.lowell telescope_to_facility urn:nasa:pds:context:investigation:mission.double_asteroid_redirection_test telescope_to_investigation urn:nasa:pds:context:instrument:lowell.discovery_4m3.lmi telescope_to_instrument 4.3 The Lowell Discovery Telescope, formerly known as the "Discovery Channel Telescope (DCT)", is a 4.3m diameter telescope with an effective focal length of 26.04 m and an f/ratio of 6.2. The LDT instrument cube allows simultaneous attachment of five instruments to the telescope.