Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 12 6.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/07/2022   11:17:53   (   0.01,-137.33) (   0.61,-139.91)  293.95                80
 12/08/2022   10:56:55   (   0.01,-137.33) (  -0.42,-135.48)  211.85                80
 12/09/2022   23:19:30   (  -0.02,-137.32) (  -0.83,-140.91)  409.71                80
 12/10/2022   23:03:51   (  -0.02,-137.32) (   0.15,-136.47)   95.83                80
 12/13/2022   11:07:59   (   0.01,-137.31) (   0.03,-137.45)   15.21                80
 12/14/2022   10:46:59   (   0.00,-137.31) (  -0.95,-133.01)  489.66                80
 12/15/2022   23:09:35   (   0.00,-137.29) (  -0.23,-138.46)  133.11                80
 12/16/2022   22:51:16   (   0.01,-137.28) (   0.75,-134.02)  371.68                80
 12/18/2022   11:16:22   (  -0.00,-137.27) (   0.46,-139.43)  244.97                80
 12/19/2022   10:55:23   (  -0.00,-137.26) (  -0.53,-134.99)  259.35                80