Yep. Fifteen degrees of rotation per hour.
Probably not a good idea to call the police and complain that stars are flying across the skies above your property on clear nights.
Your drone's pitch and roll data before launching show a pitch angle of 3.6° and roll of 0.3°.
That's not going to cause any problem at all.
Where did this come from?
Is it something that you told them?
But launching from a surface that's...
Sorry .. that's not answering my question.
How do you know these distant points of light are drones?
What about them makes you think they are drones?
You say you've been looking at them for three years.
You must have observed something about...