Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Satellite | Launch date | Carrier rocket | Launch site | COSPAR ID |
| --- | --- | --- | --- | --- |
| Ariel 1 | 1962-04-26 | Thor-Delta | Cape Canaveral | 1962-015A |
| Ariel 2 | 1964-03-27 | Scout | Wallops Island | 1964-015A |
| Ariel 3 | 1967-05-05 | Scout | Vandenberg AFB | 1967-042A |
| Ariel 4 | 1971-12-11 | Scout | Vandenberg | 1971-109A |
| Ariel 5 | 1974-10-15 | Scout | San Marco | 1974-077A |
| Ariel 6 | 1979-06-02 | Scout | Wallops Island | 1979-047A |
Question:
What is the COSPAR ID of Ariel 4, which was launched with a Scout carrier rocket?
Answer:
1971-109A