Many thanks !
Given the launch date (MJD 59053.195139) it seems awfully like they had no time for a LEO Parking Orbit. Which also explains why there are no elements for that on JPL or elsewhere. Seems very much like we have a direct TMI ! Won't be easy to simulate.
Edit : What seems a little weird is that given those elements, the probe is approaching Earth, not ejecting...
Edit2 : here's a file with Orbiter's stock Carina in place of Tianwen (same mass, 5000 kg)
Edit3 : from Wikipedia :
Which gives, using the "Date" tool in Orbiter/utils :
MJD 59053.195313
Edit 4 :
Using pen-and-paper, or, maybe more conveniently, an online calculator (
https://instacalc.com/42678), for the given inclination we get :
North : 67.62°
South : 112.38°
From Wenchang, the only viable option is
South, because North flies directly over China's very densely populated coast. Also I know they use atolls and boats in China's Sea, right South/Southwest form Wenchang, as tracking stations.