Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 5 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)
 06/02/2019   06:32:14   (   0.01, -75.20) (   0.05, -75.35)   17.18                80
 06/04/2019   18:32:21   (  -0.00, -75.21) (  -0.18, -76.03)   92.86                80
 06/05/2019   18:16:06   (  -0.00, -75.21) (   0.86, -71.46)  428.45                80
 06/07/2019   06:37:38   (  -0.00, -75.22) (   0.32, -76.66)  164.77                80
 06/08/2019   06:16:03   (  -0.01, -75.22) (  -0.72, -72.10)  356.71                80
 06/09/2019   18:37:44   (   0.01, -75.24) (  -0.45, -77.34)  239.45                80
 06/10/2019   18:21:30   (   0.01, -75.25) (   0.59, -72.78)  282.66                80
 06/12/2019   06:43:01   (  -0.02, -75.27) (   0.60, -77.98)  309.06                80
 06/13/2019   06:21:27   (  -0.02, -75.28) (  -0.44, -73.41)  213.37                80
 06/14/2019   18:43:08   (   0.02, -75.31) (  -0.72, -78.66)  381.59                80