Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 6 2.  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   06:32:15   (   0.00, -75.20) (   0.01, -75.36)   17.63                80
 06/04/2019   18:32:20   (   0.01, -75.21) (  -0.20, -76.02)   93.33                80
 06/05/2019   18:16:06   (   0.01, -75.21) (   0.84, -71.46)  427.94                80
 06/07/2019   06:37:38   (  -0.02, -75.22) (   0.28, -76.67)  165.23                80
 06/08/2019   06:16:03   (  -0.02, -75.22) (  -0.70, -72.09)  356.32                80
 06/09/2019   18:37:44   (   0.02, -75.24) (  -0.47, -77.34)  239.90                80
 06/10/2019   18:21:30   (   0.02, -75.25) (   0.57, -72.77)  282.22                80
 06/12/2019   06:43:02   (  -0.02, -75.26) (   0.55, -77.99)  309.50                80
 06/13/2019   06:21:26   (  -0.03, -75.28) (  -0.43, -73.41)  212.95                80
 06/14/2019   18:43:08   (   0.03, -75.30) (  -0.73, -78.65)  382.12                80
 06/15/2019   18:26:53   (   0.03, -75.32) (   0.31, -74.09)  140.67                80