Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 12 5.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/05/2022   22:55:27   (  -0.02,-137.30) (   0.59,-134.50)  319.36                80
 12/07/2022   11:17:53   (   0.02,-137.29) (   0.64,-139.90)  298.04                80
 12/08/2022   10:56:54   (   0.02,-137.28) (  -0.39,-135.47)  206.29                80
 12/09/2022   23:19:30   (  -0.02,-137.25) (  -0.85,-140.91)  417.14                80
 12/10/2022   23:03:51   (  -0.02,-137.24) (   0.18,-136.48)   86.85                80
 12/13/2022   11:07:58   (   0.01,-137.20) (   0.06,-137.45)   27.96                80
 12/14/2022   10:46:59   (   0.00,-137.18) (  -0.92,-133.00)  475.55                80
 12/15/2022   23:12:14   (  -0.01,-137.14) (  -0.32,-138.44)  148.81                80
 12/16/2022   22:51:15   (  -0.00,-137.12) (   0.72,-134.02)  354.60                80
 12/18/2022   11:16:21   (   0.01,-137.09) (   0.55,-139.41)  264.46                80