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_69 (orbital_period VARCHAR, center_to_center_distance VARCHAR)
### Question:
center-to-center distance of 6,900 to 46,300 km involves which orbital period?
### Answer:
SELECT orbital_period FROM table_name_69 WHERE center_to_center_distance = "6,900 to 46,300 km"