I begin to be painful with my questions I know I’m really sorry, but there something I cannot understand with the Measurements generation (both manual method, ie, theoritical orbit, data noise & manual generation of the Measurements objects AND the method proposed by @yzokras with EventBasedScheduler in this exemple https://github.com/GorgiAstro/orbit-determination-examples/blob/022bae63bef6263972ab85b6bc81eaa0b3e6b4ee/00-generate-measurements-and-tle.ipynb ).
The question is :
When I’m generating measurements from the theoritical orbit (without noise), why do I have to put real sigma values in the constructor of the measurement ?
True, # two-way
1.0, # Base weight
Given that the range value presented here is perfect for theoritical orbit, I thought that the associated error should be 0 (or 1e-6 because of the decomposition of the Jacobean matrix), but, I just noticed that if I put 1e-6 everywhere, my IOD and BLS are convergering to a wrong orbit.
Thank you in advance for the clarification.
PS : I take advantage of this post to ask another question, why the AngularAzEl object do not need the information TwoWay as an input ? This measurement is also depending of the drift during the time needed by the signal to go to the Radar/Telescope, isn’t it ?