Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What was the altitude of the event on 1962-07-09?

### Inputs:
table_name: table, columns: ['Explosion', 'Location', 'Date', 'Yield (approximate)', 'Altitude (km)', 'Nation of Origin']

### Response:
SELECT Altitude (km) FROM table WHERE Date = 1962-07-09