CREATE TABLE table_45466 ("Name" CLOB, "Latitude" CLOB, "Longitude" CLOB, "Diameter  ( km ) " FLOAT, "Year named" FLOAT)

What's the longitude named zipaltonal fluctus in 1997 with a diameter smaller than 490?
SELECT "Longitude" FROM table_45466 WHERE "Year named" = '1997' AND "Diameter (km)" < '490' AND "Name" = 'zipaltonal fluctus'
SELECT "Longitude" FROM "table_45466" WHERE "Diameter (km)" < '490' AND "Name" = 'zipaltonal fluctus' AND "Year named" = '1997'