Table: ariel_satellites
Columns: satellite
launch_date
carrier_rocket
launch_site
cospar_id

Question: From where did the Scout carrier rocket with the satellite that has a COSPAR ID of 1971-109a launch?
SQL: SELECT "launch_site" FROM ariel_satellites WHERE "carrier_rocket" = 'scout' AND "cospar_id" = '1971-109a'

Question: When was the satellite that has a COSPAR ID of 1967-042a launched?
SQL: SELECT "launch_date" FROM ariel_satellites WHERE "cospar_id" = '1967-042a'

Question: What is Ariel 3's COSPAR ID?
SQL: SELECT "cospar_id" FROM ariel_satellites WHERE "satellite" = 'ariel 3'

Question: Which satellite was launched from Vandenberg?
SQL: SELECT "satellite" FROM ariel_satellites WHERE "launch_site" = 'vandenberg'

Question: What is the COSPAR ID of Ariel 4, which was launched with a Scout carrier rocket?
SQL: SELECT "cospar_id" FROM ariel_satellites WHERE "carrier_rocket" = 'scout' AND "satellite" = 'ariel 4'