In 1869, a century before the moon landing, eighty-eight years before Sputnik 1, and one hundred nine years before the first navigational satellite, Edward Everett Hale used a science fiction story to propose launching an artificial satellite into polar orbit to enable anyone, anywhere, to determine their longitude by measuring the satellite’s elevation from the horizon.
Longitude Review
It might be decent for what it is, and you will likely learn something if you haven’t done much reading on the longitude problem before, but after the research I did for my novel, this had little new to add.
IGC Publishing 