Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 12 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/27/2022   22:52:22   (  -0.01,-137.33) (   0.83,-133.51)  435.47                80
 12/29/2022   11:14:48   (   0.01,-137.33) (   0.35,-138.91)  180.28                80
 12/30/2022   10:53:48   (   0.01,-137.33) (  -0.64,-134.48)  325.40                80
 12/31/2022   23:16:24   (  -0.02,-137.32) (  -0.58,-139.92)  295.64                80
 01/01/2023   23:00:44   (  -0.02,-137.31) (   0.41,-135.48)  209.76                80
 01/03/2023   11:23:09   (   0.02,-137.30) (   0.82,-140.87)  406.94                80
 01/04/2023   11:02:10   (   0.02,-137.29) (  -0.17,-136.44)   97.96                80
 01/06/2023   23:09:05   (  -0.03,-137.26) (  -0.09,-137.43)   19.88                80
 01/07/2023   22:48:05   (  -0.03,-137.25) (   0.91,-132.99)  484.69                80
 01/09/2023   11:13:11   (   0.04,-137.22) (   0.33,-138.39)  133.28                80