text: Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
  ### Context:
  CREATE TABLE table_name_13 (type VARCHAR, date VARCHAR, satellite VARCHAR)
  ### Question:
  What is the type of the gps iif-10 satellite with an unknown date?
  ### Answer:
  SELECT type FROM table_name_13 WHERE date = "unknown" AND satellite = "gps iif-10"