Amateur astronomers around the world locate and track satellites-both commercial and spy satellites-and post their orbits on the Web. Some intelligence officials argue that if enemies and terrorists know when U. S. spy satellites are overhead, they can hide their activities. What issues does this problem raise? Should astronomers refrain from posting satellite orbits? Why or why not?

As explained below.

Explanation:

As the satellites can be tracked down by professionals and other astronomers around the world both the commercial and the spy satellites orbits are known to the agents and eventually are also known to the attackers which can hide their activity.  Satellite navigation is a matter of serious concern as for the purpose of the national security and is a matter of intelligence the satellite thus changes there orbits half by half and inch by inch.  The astronomers use specially designed micro and mini satellites to track down their activities.