Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 10 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 10/07/2019   06:26:07   (  -0.02, -75.20) (  -0.12, -74.63)   63.81                80
 10/09/2019   18:28:53   (   0.02, -75.20) (  -0.01, -75.31)   12.17                80
 10/12/2019   06:34:08   (  -0.01, -75.22) (   0.16, -75.94)   81.62                80
 10/13/2019   06:12:33   (  -0.01, -75.23) (  -0.85, -71.36)  440.60                80
 10/14/2019   18:34:14   (   0.01, -75.24) (  -0.28, -76.61)  155.50                80
 10/15/2019   18:17:59   (   0.00, -75.25) (   0.73, -72.03)  367.07                80
 10/17/2019   06:39:30   (   0.02, -75.28) (   0.43, -77.24)  222.93                80
 10/18/2019   06:17:55   (   0.01, -75.29) (  -0.58, -72.66)  299.34                80
 10/19/2019   18:42:15   (  -0.01, -75.30) (  -0.60, -77.90)  296.52                80
 10/20/2019   18:20:39   (  -0.01, -75.31) (   0.41, -73.32)  226.01                80