What is the nssdc id for Echo 1?
CREATE TABLE table_2150068_1 (nssdc_id VARCHAR, satellite VARCHAR)
SELECT nssdc_id FROM table_2150068_1 WHERE satellite = "Echo 1"
### Context: CREATE TABLE table_2150068_1 (nssdc_id VARCHAR, satellite VARCHAR) ### Question: What is the nssdc id for Echo 1? ### Answer: SELECT nssdc_id FROM table_2150068_1 WHERE satellite = "Echo 1"