Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 12 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/26/2022   23:08:02   (   0.01,-137.32) (  -0.12,-137.96)   71.69                80
 12/27/2022   22:52:22   (   0.00,-137.32) (   0.87,-133.52)  433.66                80
 12/29/2022   11:14:48   (  -0.00,-137.31) (   0.37,-138.91)  183.05                80
 12/30/2022   10:53:48   (  -0.00,-137.30) (  -0.63,-134.47)  322.15                80
 12/31/2022   23:16:23   (  -0.00,-137.29) (  -0.59,-139.91)  299.46                80
 01/01/2023   23:00:44   (  -0.00,-137.28) (   0.41,-135.48)  205.41                80
 01/03/2023   11:20:29   (   0.00,-137.26) (   0.83,-140.87)  412.30                80
 01/04/2023   11:04:50   (   0.00,-137.25) (  -0.17,-136.44)   92.13                80
 01/06/2023   23:06:25   (  -0.01,-137.20) (  -0.09,-137.43)   26.71                80
 01/07/2023   22:50:45   (  -0.01,-137.18) (   0.91,-132.99)  477.47                80