Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 5 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)
 05/14/2019   18:29:42   (  -0.00, -75.19) (  -0.02, -75.36)   18.48                80
 05/17/2019   06:34:58   (   0.00, -75.20) (   0.19, -75.99)   89.85                80
 05/18/2019   06:13:24   (   0.00, -75.21) (  -0.85, -71.42)  431.70                80
 05/19/2019   18:35:05   (   0.00, -75.22) (  -0.31, -76.67)  164.91                80
 05/20/2019   18:18:51   (   0.00, -75.23) (   0.73, -72.10)  356.98                80
 05/22/2019   06:40:22   (  -0.01, -75.25) (   0.47, -77.30)  234.82                80
 05/23/2019   06:18:48   (  -0.01, -75.26) (  -0.57, -72.74)  287.28                80
 05/24/2019   18:40:29   (   0.02, -75.28) (  -0.59, -77.98)  308.48                80
 05/25/2019   18:24:14   (   0.02, -75.30) (   0.45, -73.42)  214.23                80
 05/27/2019   06:45:46   (  -0.02, -75.33) (   0.74, -78.62)  376.00                80