CREATE TABLE table_18161217_2 (estimated_end_date VARCHAR, _clarification_needed_ VARCHAR, cospar_id VARCHAR)

What is the estimated end date for the 2001-037a international designated satellite?
SELECT estimated_end_date AS "_clarification_needed_" FROM table_18161217_2 WHERE cospar_id = "2001-037A"
SELECT "estimated_end_date" AS "_clarification_needed_" FROM "table_18161217_2" WHERE "2001-037A" = "cospar_id"