Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 12 2.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/02/2022   11:09:30   (   0.00,-137.33) (   0.13,-137.94)   69.36                80
 12/03/2022   10:48:30   (   0.01,-137.33) (  -0.83,-133.50)  436.02                80
 12/04/2022   23:11:07   (  -0.01,-137.31) (  -0.36,-138.95)  185.81                80
 12/05/2022   22:55:27   (  -0.01,-137.31) (   0.61,-134.50)  319.28                80
 12/07/2022   11:17:53   (   0.01,-137.30) (   0.62,-139.91)  297.69                80
 12/08/2022   10:56:55   (   0.02,-137.29) (  -0.41,-135.48)  206.94                80
 12/09/2022   23:19:30   (  -0.02,-137.26) (  -0.84,-140.91)  416.28                80
 12/10/2022   23:03:51   (  -0.02,-137.25) (   0.13,-136.47)   87.85                80
 12/13/2022   11:07:59   (   0.01,-137.21) (   0.05,-137.45)   26.59                80
 12/14/2022   10:46:59   (  -0.00,-137.20) (  -0.92,-133.01)  477.06                80
 12/15/2022   23:12:14   (  -0.00,-137.16) (  -0.32,-138.45)  147.25                80