urn:nasa:pds:context:telescope:lowell.perkins_warner1m83 1.1 1.11.0.0 Product_Context 2016-03-03 1.0 Initial version exported from OLAF 2019-01-23 1.1 Updated schema locations urn:nasa:pds:context:facility:observatory.lowell telescope_to_facility Anderson Mesa Station (OLAF observatory code 318) 1.83 248.464081 35.096832 2200 Geodetic - North American (1927) Datum The 1.83-m Perkins Warner & Swasey reflector is a 1.83 m telescope located at 35.096832, 248.464081 at the Anderson Mesa Station. Operational 1961+; from Perkins Obs.