Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 8 31.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/31/2019   06:26:26   (   0.00, -75.18) (  -0.14, -74.69)   56.47                80
 09/02/2019   18:29:11   (  -0.00, -75.20) (  -0.03, -75.35)   17.64                80
 09/05/2019   06:34:27   (   0.00, -75.21) (   0.18, -75.99)   88.93                80
 09/06/2019   06:12:53   (  -0.00, -75.22) (  -0.88, -71.42)  433.10                80
 09/07/2019   18:34:33   (   0.00, -75.24) (  -0.30, -76.67)  161.65                80
 09/08/2019   18:18:18   (   0.00, -75.26) (   0.70, -72.09)  360.79                80
 09/10/2019   06:39:50   (  -0.00, -75.27) (   0.43, -77.30)  231.13                80
 09/11/2019   06:18:15   (  -0.00, -75.29) (  -0.57, -72.72)  291.72                80
 09/12/2019   18:39:55   (   0.00, -75.32) (  -0.61, -77.96)  301.78                80
 09/13/2019   18:23:40   (   0.00, -75.34) (   0.45, -73.40)  221.60                80