Hi @Hannah, 
1. Create a JSON file using the stored object parameter. Something like this:
{
    "Type": "SELECT",
    "Tier": "Standard",
    "SelectParameters": {
        "InputSerialization": {
            "CSV": {
                "FileHeaderInfo": "USE"
            }
        },
        "ExpressionType": "SQL",
        "Expression": "SELECT * FROM object",
        "OutputSerialization": {
            "CSV": {}
        }
    },
    "OutputLocation": {
        "S3": {
            "BucketName": "awsexamplebucket",
            "Prefix": "outputJob",
            "StorageClass": "STANDARD"
        }
    }
}
2. Run the restore-object  command 
$ aws s3api restore-object --bucket awsexamplebucket --key file.csv --restore-request file://restoreJob.json
3. You'll get your S3 object location. something like this:
{
    "RestoreOutputPath": "outputJob/example_iNHt-0sE2cqt8ZtwNdE1nHi7nKzRaIWLyzzcsW4QWIUaHduHVReDDdavy-aLfEdnD6ql3AR8s4f4oZzhdhBg/"
}