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_16799784_8 (diameter__km_ VARCHAR, longitude VARCHAR)
  ### Question:
  What is  the diameter in km of the feature with a longitude of 40.2E? 
  ### Answer:
  SELECT diameter__km_ FROM table_16799784_8 WHERE longitude = "40.2E"