Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 4 14.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 04/15/2019   06:40:25   (  -0.01, -75.20) (   0.44, -77.26)  233.66                80
 04/16/2019   06:18:50   (  -0.01, -75.21) (  -0.59, -72.69)  287.55                80
 04/17/2019   18:40:31   (   0.01, -75.22) (  -0.61, -77.93)  309.05                80
 04/18/2019   18:24:16   (   0.01, -75.23) (   0.42, -73.36)  212.61                80
 04/20/2019   06:45:50   (  -0.01, -75.24) (   0.72, -78.58)  379.82                80
 04/21/2019   06:24:15   (  -0.02, -75.25) (  -0.31, -74.01)  142.02                80
 04/22/2019   18:45:55   (   0.02, -75.27) (  -0.88, -79.25)  453.87                80
 04/23/2019   18:29:41   (   0.03, -75.28) (   0.15, -74.68)   68.44                80
 04/26/2019   06:32:20   (  -0.03, -75.33) (  -0.04, -75.33)    1.74                80