Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 8 8.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/09/2019   06:45:27   (  -0.04, -75.17) (   0.73, -78.63)  393.58                80
 08/10/2019   06:23:53   (  -0.04, -75.18) (  -0.32, -74.06)  128.00                80
 08/11/2019   18:45:32   (   0.05, -75.19) (  -0.88, -79.29)  468.12                80
 08/12/2019   18:29:18   (   0.05, -75.20) (   0.17, -74.73)   53.87                80
 08/15/2019   06:31:56   (  -0.06, -75.23) (  -0.05, -75.37)   16.06                80
 08/17/2019   18:32:00   (   0.06, -75.27) (  -0.11, -76.04)   87.82                80
 08/18/2019   18:15:46   (   0.06, -75.29) (   0.95, -71.47)  435.29                80
 08/20/2019   06:37:18   (  -0.07, -75.32) (   0.22, -76.68)  155.21                80
 08/21/2019   06:15:43   (  -0.07, -75.34) (  -0.77, -72.10)  368.10                80