Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 8 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)
 08/05/2019   06:21:10   (  -0.02, -75.19) (  -0.60, -72.76)  278.13                80
 08/06/2019   18:40:10   (   0.03, -75.19) (  -0.61, -77.99)  319.62                80
 08/07/2019   18:23:55   (   0.03, -75.18) (   0.44, -73.42)  200.92                80
 08/09/2019   06:42:47   (  -0.03, -75.17) (   0.74, -78.63)  394.16                80
 08/10/2019   06:26:33   (  -0.03, -75.17) (  -0.31, -74.06)  126.61                80
 08/11/2019   18:45:32   (   0.04, -75.17) (  -0.90, -79.29)  470.37                80
 08/12/2019   18:29:18   (   0.04, -75.17) (   0.15, -74.73)   50.75                80
 08/15/2019   06:29:16   (  -0.05, -75.18) (  -0.02, -75.37)   21.78                80
 08/17/2019   18:32:00   (   0.05, -75.20) (  -0.13, -76.04)   95.29                80