Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 5 4.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/04/2019   18:21:34   (  -0.00, -75.23) (   0.57, -72.73)  284.94                80
 05/06/2019   06:43:06   (   0.00, -75.23) (   0.60, -77.94)  308.33                80
 05/07/2019   06:21:32   (   0.00, -75.24) (  -0.44, -73.37)  213.44                80
 05/08/2019   18:43:12   (  -0.00, -75.26) (  -0.78, -78.61)  382.11                80
 05/09/2019   18:26:58   (   0.00, -75.27) (   0.26, -74.04)  139.81                80
 05/11/2019   06:48:30   (  -0.00, -75.28) (   0.90, -79.25)  452.92                80
 05/12/2019   06:26:55   (  -0.01, -75.29) (  -0.14, -74.69)   69.18                80
 05/14/2019   18:29:42   (   0.01, -75.34) (   0.02, -75.37)    3.43                80
 05/17/2019   06:34:59   (  -0.01, -75.38) (   0.15, -76.00)   71.00                80