We have done 8 observations: (Lingqi Meng processes data)

2020-11-16  30 mins

2020-11-18  30 mins

2020-11-19  30 mins

2020-11-27  30 mins

2020-11-28  30 mins

2020-11-29  30 mins

2020-12-01  30 mins

2021-03-07  120 mins

We use DDGR and DD model to fit and results are,

With Shapiro Delay exists:

Fit Shapiro Delay:

We detect a hint signal of Shapiro Delay (about 5 μs). The ephemeris of DDGR is from Paulo.