Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 5 1.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/01/2022   23:06:48   (   0.02,-137.20) (  -0.47,-139.35)  245.83                80
 05/02/2022   22:45:44   (   0.02,-137.19) (   0.56,-134.90)  261.55                80
 05/04/2022   11:10:43   (  -0.02,-137.19) (   0.69,-140.27)  351.90                80
 05/05/2022   10:49:39   (  -0.02,-137.18) (  -0.34,-135.83)  155.04                80
 05/06/2022   23:14:46   (   0.01,-137.17) (  -0.93,-141.23)  464.19                80
 05/07/2022   22:53:43   (   0.01,-137.16) (   0.10,-136.78)   42.49                80
 05/10/2022   11:00:18   (  -0.01,-137.13) (   0.12,-137.71)   65.66                80
 05/11/2022   10:39:13   (  -0.01,-137.12) (  -0.85,-133.25)  440.62                80
 05/12/2022   23:04:22   (   0.00,-137.09) (  -0.33,-138.67)  179.60                80
 05/13/2022   22:45:44   (   0.01,-137.07) (   0.65,-134.21)  326.34                67