Hey thanks for the for the suggestion. Unfortunately like I was discussing above I need the state transition matrix in equinoctial and Keplarian elements. Using the methodology you put out only.produces the Cartesian elements. Further in the discussion above we discuss using partials to change the elements but there are small non linearities, which are a problem for my application.
Supposedly using the partial derivative structure doesn’t have those issues which is why Im trying to figure out how to do so