Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 11 30.  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   (   0.01,-137.33) (   0.13,-137.94)   68.92                80
 12/03/2022   10:48:30   (   0.01,-137.33) (  -0.84,-133.50)  436.67                80
 12/04/2022   23:11:07   (  -0.01,-137.32) (  -0.35,-138.95)  184.83                80
 12/05/2022   22:55:27   (  -0.02,-137.32) (   0.62,-134.51)  320.48                80
 12/07/2022   11:17:53   (   0.02,-137.31) (   0.61,-139.91)  296.15                80
 12/08/2022   10:56:54   (   0.03,-137.30) (  -0.36,-135.47)  208.69                80
 12/09/2022   23:19:30   (  -0.03,-137.28) (  -0.83,-140.92)  414.15                80
 12/10/2022   23:03:51   (  -0.04,-137.27) (   0.14,-136.48)   90.28                80
 12/13/2022   11:07:58   (   0.04,-137.24) (   0.11,-137.44)   23.39                80