CREATE TABLE table_70277 ("Start Date/Time" TEXT, "Duration" TEXT, "End Time" TEXT, "Spacecraft" TEXT, "Crew" TEXT)

What is the spacecraft with end time of 4 September 04:51?
SELECT "Spacecraft" FROM table_70277 WHERE "End Time" = '4 september 04:51'
SELECT "Spacecraft" FROM "table_70277" WHERE "End Time" = '4 september 04:51'