Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 12 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/09/2022   23:19:30   (  -0.02,-137.32) (  -0.84,-140.91)  409.44                80
 12/10/2022   23:03:52   (  -0.02,-137.32) (   0.19,-136.48)   95.80                80
 12/13/2022   11:07:58   (   0.00,-137.31) (   0.05,-137.45)   15.64                80
 12/14/2022   10:47:00   (  -0.01,-137.31) (  -0.99,-133.02)  489.25                80
 12/15/2022   23:12:15   (   0.01,-137.29) (  -0.26,-138.46)  133.34                80
 12/16/2022   22:51:16   (   0.01,-137.28) (   0.72,-134.01)  371.38                80
 12/18/2022   11:16:22   (  -0.01,-137.27) (   0.48,-139.42)  245.45                80
 12/19/2022   10:55:23   (  -0.01,-137.25) (  -0.50,-134.98)  258.79                80
 12/20/2022   23:20:38   (  -0.00,-137.22) (  -0.74,-140.42)  365.18                80
 12/21/2022   22:59:38   (  -0.00,-137.20) (   0.25,-135.98)  138.53                80