CREATE TABLE table_44449 ("Designation" TEXT, "Name" TEXT, "Launch date" TEXT, "ISS docking date" TEXT, "Deorbit date" TEXT)

When did the ATV that launched on 9 March 2008, deorbit?
SELECT "Deorbit date" FROM table_44449 WHERE "Launch date" = '9 march 2008'
SELECT "Deorbit date" FROM "table_44449" WHERE "Launch date" = '9 march 2008'