CREATE TABLE table_44842 ("Date" FLOAT, "Region" TEXT, "Label" TEXT, "Format" TEXT, "Catalog" TEXT)

WHAT DATE HAS A CATALOG OF 486553.4?
SELECT MAX("Date") FROM table_44842 WHERE "Catalog" = '486553.4'
SELECT MAX("Date") FROM "table_44842" WHERE "Catalog" = '486553.4'