Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 4 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 04/29/2019   18:16:10   (  -0.00, -75.20) (   0.86, -71.42)  431.66                80
 05/01/2019   06:37:42   (   0.00, -75.19) (   0.31, -76.63)  162.95                80
 05/02/2019   06:16:08   (   0.00, -75.20) (  -0.72, -72.06)  358.38                80
 05/03/2019   18:37:48   (  -0.00, -75.22) (  -0.49, -77.30)  237.16                80
 05/04/2019   18:21:34   (  -0.00, -75.23) (   0.54, -72.73)  284.54                80
 05/06/2019   06:43:06   (   0.00, -75.23) (   0.62, -77.94)  309.11                80
 05/07/2019   06:21:31   (   0.00, -75.24) (  -0.42, -73.37)  212.47                80
 05/08/2019   18:43:13   (   0.00, -75.26) (  -0.74, -78.62)  383.09                80
 05/09/2019   18:26:58   (   0.00, -75.26) (   0.30, -74.05)  138.73                80
 05/11/2019   06:48:31   (  -0.00, -75.27) (   0.86, -79.26)  454.27                80
 05/12/2019   06:26:55   (   0.00, -75.28) (  -0.12, -74.68)   67.81                80