Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 7 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)
 07/09/2019   06:29:26   (  -0.01, -75.20) (   0.05, -75.36)   19.16                80
 07/11/2019   18:32:12   (   0.01, -75.20) (  -0.19, -76.03)   95.22                80
 07/12/2019   18:15:57   (   0.01, -75.20) (   0.86, -71.47)  426.30                80
 07/14/2019   06:34:50   (  -0.02, -75.22) (   0.30, -76.68)  166.03                80
 07/15/2019   06:18:34   (  -0.01, -75.22) (  -0.68, -72.10)  355.81                80
 07/16/2019   18:37:35   (   0.01, -75.23) (  -0.43, -77.35)  240.52                80
 07/17/2019   18:21:20   (   0.01, -75.24) (   0.56, -72.77)  281.82                80
 07/19/2019   06:40:12   (  -0.01, -75.27) (   0.61, -77.98)  309.25                80
 07/20/2019   06:23:58   (  -0.01, -75.28) (  -0.43, -73.41)  213.51                80
 07/21/2019   18:42:58   (   0.01, -75.31) (  -0.73, -78.66)  381.41                80