Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 10 6.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 10/06/2019   06:47:42   (  -0.00, -75.20) (   0.92, -79.20)  457.05                80
 10/07/2019   06:26:07   (  -0.00, -75.20) (  -0.14, -74.64)   64.10                80
 10/09/2019   18:28:52   (   0.00, -75.20) (  -0.05, -75.30)   12.23                80
 10/12/2019   06:34:09   (  -0.00, -75.22) (   0.14, -75.94)   81.27                80
 10/13/2019   06:12:33   (  -0.00, -75.23) (  -0.86, -71.36)  440.90                80
 10/14/2019   18:34:14   (   0.00, -75.24) (  -0.33, -76.60)  155.25                80
 10/15/2019   18:17:59   (  -0.00, -75.26) (   0.74, -72.04)  367.24                80
 10/17/2019   06:39:30   (   0.00, -75.28) (   0.42, -77.24)  223.29                80
 10/18/2019   06:17:55   (   0.01, -75.29) (  -0.58, -72.66)  299.26                80
 10/19/2019   18:39:35   (  -0.01, -75.30) (  -0.60, -77.90)  296.49                80