Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 6 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)
 06/08/2019   06:16:03   (  -0.00, -75.20) (  -0.70, -72.09)  354.43                80
 06/09/2019   18:37:44   (   0.00, -75.20) (  -0.48, -77.33)  243.09                80
 06/10/2019   18:21:30   (   0.01, -75.21) (   0.57, -72.77)  278.44                80
 06/12/2019   06:43:01   (  -0.01, -75.22) (   0.62, -77.97)  313.62                80
 06/13/2019   06:21:26   (  -0.01, -75.23) (  -0.42, -73.40)  208.25                80
 06/14/2019   18:43:08   (   0.01, -75.24) (  -0.74, -78.65)  388.08                80
 06/15/2019   18:26:53   (   0.02, -75.26) (   0.30, -74.08)  134.12                80
 06/17/2019   06:48:24   (  -0.02, -75.28) (   0.89, -79.28)  457.05                80
 06/18/2019   06:26:50   (  -0.02, -75.29) (  -0.15, -74.72)   65.39                80
 06/20/2019   18:32:17   (   0.03, -75.33) (   0.04, -75.40)    7.56                80