urn:nasa:pds:context:telescope:ensenada.2m12 0.0 1.7.0.0 Product_Context 2016-03-03 1.0 Initial version exported from OLAF urn:nasa:pds:context:facility:observatory.ensenada telescope_to_facility National Astronomical Observatory-Ensenada (OLAF observatory code 211) 2.12 244.536949 31.043888 2830 Unknown The 2.12-m Ritchey-Chretien reflector is a 2.12 m telescope located at 31.043888, 244.536949 at the National Astronomical Observatory-Ensenada. The Instituto de Astronomia at Ensenada, Mexico, operates the 2.1m, Ritchey-Chretien reflector telescope at the Observatorio Astronomico Nacional - San Pedro Martir facility located on the summit of the San Pedro Martir Sierra on the Baja California peninsula of Mexico. Built between 1974 and 1979, the telescope features secondaries of f/7.5, f/13.5, or f/30 and has been in operation since July 1979. The 2.1m telescope is located at: Longitude : 115.463611 degrees West (-115deg 27' 49'') Latitude : 31.044167 degrees North ( +31deg 02' 39'') Altitude : 2800 meters