Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 8 9.  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   06:45:28   (  -0.03, -75.17) (   0.71, -78.63)  393.42                80
 08/10/2019   06:23:52   (  -0.04, -75.17) (  -0.28, -74.05)  127.28                80
 08/11/2019   18:45:33   (   0.04, -75.17) (  -0.87, -79.30)  470.04                80
 08/12/2019   18:29:17   (   0.05, -75.17) (   0.12, -74.72)   51.11                80
 08/15/2019   06:29:15   (  -0.05, -75.18) (  -0.00, -75.36)   21.02                80
 08/17/2019   18:32:00   (   0.06, -75.20) (  -0.15, -76.03)   95.04                80
 08/18/2019   18:15:45   (   0.06, -75.21) (   0.90, -71.46)  427.22                80
 08/20/2019   06:37:18   (  -0.06, -75.23) (   0.28, -76.67)  164.69                80
 08/21/2019   06:15:43   (  -0.06, -75.24) (  -0.78, -72.11)  357.76                80
 08/22/2019   18:37:23   (   0.06, -75.26) (  -0.37, -77.35)  237.28                80