Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 5 2.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/02/2019   06:16:07   (   0.00, -75.20) (  -0.68, -72.05)  358.53                80
 05/03/2019   18:37:48   (  -0.00, -75.22) (  -0.47, -77.30)  237.02                80
 05/04/2019   18:21:34   (  -0.00, -75.23) (   0.56, -72.73)  284.70                80
 05/06/2019   06:43:06   (   0.00, -75.23) (   0.60, -77.94)  308.89                80
 05/07/2019   06:21:32   (   0.00, -75.24) (  -0.44, -73.37)  212.76                80
 05/08/2019   18:43:12   (  -0.00, -75.26) (  -0.78, -78.61)  382.81                80
 05/09/2019   18:26:58   (   0.00, -75.27) (   0.26, -74.04)  139.00                80
 05/11/2019   06:48:30   (  -0.01, -75.27) (   0.90, -79.25)  454.02                80
 05/12/2019   06:26:55   (  -0.01, -75.28) (  -0.14, -74.69)   67.96                80
 05/14/2019   18:29:42   (   0.01, -75.33) (   0.02, -75.37)    4.77                80