CREATE TABLE table_36681 ("Name" TEXT, "Number" TEXT, "Namesake" TEXT, "Albedo feature name" TEXT, "Area" TEXT, "Current map" TEXT)

What is the current map designation of the feature for which derain crater was the namesake?
SELECT "Current map" FROM table_36681 WHERE "Namesake" = 'derain crater'
SELECT "Current map" FROM "table_36681" WHERE "Namesake" = 'derain crater'