Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 4 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 04/16/2019   06:18:50   (  -0.00, -75.20) (  -0.56, -72.68)  286.56                80
 04/17/2019   18:40:30   (   0.00, -75.19) (  -0.64, -77.92)  311.41                80
 04/18/2019   18:24:16   (   0.00, -75.19) (   0.39, -73.35)  209.55                80
 04/20/2019   06:45:49   (  -0.00, -75.20) (   0.74, -78.57)  384.04                80
 04/21/2019   06:24:15   (   0.00, -75.20) (  -0.29, -74.00)  137.12                80
 04/22/2019   18:45:55   (  -0.00, -75.21) (  -0.90, -79.24)  459.97                80
 04/23/2019   18:29:40   (  -0.00, -75.21) (   0.13, -74.67)   61.55                80
 04/26/2019   06:32:18   (   0.00, -75.24) (   0.03, -75.31)    9.21                80
 04/28/2019   18:32:24   (   0.00, -75.26) (  -0.19, -75.99)   83.11                80
 04/29/2019   18:16:10   (   0.00, -75.28) (   0.85, -71.42)  439.40                80