Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 1 2.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 01/03/2023   11:23:09   (   0.02,-137.32) (   0.83,-140.87)  405.27                80
 01/04/2023   11:02:10   (   0.02,-137.31) (  -0.17,-136.43)   99.63                80
 01/06/2023   23:06:25   (  -0.02,-137.27) (  -0.03,-137.44)   18.51                80
 01/07/2023   22:50:45   (  -0.02,-137.26) (   0.92,-132.99)  486.20                80
 01/09/2023   11:13:11   (   0.01,-137.24) (   0.25,-138.40)  131.46                80
 01/10/2023   10:52:12   (   0.01,-137.22) (  -0.76,-133.96)  372.69                80
 01/11/2023   23:14:46   (  -0.01,-137.19) (  -0.49,-139.39)  250.81                80
 01/12/2023   22:59:07   (  -0.00,-137.17) (   0.52,-134.96)  253.21                80
 01/14/2023   11:21:32   (   0.00,-137.15) (   0.71,-140.36)  365.06                80
 01/15/2023   11:00:32   (   0.00,-137.13) (  -0.25,-135.91)  138.51                80