Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 5 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/07/2022   22:53:42   (   0.02,-137.18) (   0.08,-136.78)   45.90                80
 05/10/2022   11:00:18   (  -0.01,-137.19) (   0.09,-137.71)   58.91                80
 05/11/2022   10:39:14   (  -0.01,-137.19) (  -0.89,-133.25)  448.57                80
 05/12/2022   23:04:22   (   0.01,-137.17) (  -0.30,-138.67)  170.20                80
 05/13/2022   22:43:18   (   0.01,-137.17) (   0.68,-134.21)  336.88                80
 05/15/2022   11:08:17   (  -0.01,-137.16) (   0.52,-139.59)  276.98                80
 05/16/2022   10:47:12   (  -0.01,-137.15) (  -0.45,-135.13)  229.43                80
 05/17/2022   23:12:20   (   0.01,-137.12) (  -0.77,-140.55)  391.08                80
 05/18/2022   22:51:15   (   0.01,-137.10) (   0.21,-136.09)  114.81                80