CREATE TABLE table_46405 ("Name" TEXT, "Latitude" TEXT, "Longitude" TEXT, "Diameter  ( km ) " FLOAT, "Year named" FLOAT)

What is the diameter for 1997 when longitude is 212.0e and latitude is 47.0n?
SELECT MIN("Diameter (km)") FROM table_46405 WHERE "Year named" = '1997' AND "Longitude" = '212.0e' AND "Latitude" = '47.0n'
SELECT MIN("Diameter (km)") FROM "table_46405" WHERE "Latitude" = '47.0n' AND "Longitude" = '212.0e' AND "Year named" = '1997'