Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 4 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 04/20/2019   06:45:48   (  -0.00, -75.20) (   0.78, -78.56)  384.09                80
 04/21/2019   06:24:14   (  -0.00, -75.20) (  -0.26, -73.99)  137.08                80
 04/22/2019   18:45:55   (   0.00, -75.21) (  -0.88, -79.25)  459.51                80
 04/23/2019   18:29:41   (  -0.00, -75.22) (   0.15, -74.68)   62.12                80
 04/26/2019   06:32:19   (   0.00, -75.24) (   0.00, -75.32)    9.21                80
 04/28/2019   18:32:24   (   0.00, -75.27) (  -0.17, -75.99)   82.53                80
 04/29/2019   18:16:10   (   0.00, -75.28) (   0.86, -71.42)  439.96                80
 05/01/2019   06:37:42   (  -0.00, -75.31) (   0.32, -76.63)  151.30                80
 05/02/2019   06:16:08   (   0.00, -75.32) (  -0.72, -72.06)  371.44                80