Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 6 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 06/17/2019   06:48:24   (  -0.00, -75.20) (   0.91, -79.28)  464.48                80
 06/18/2019   06:26:49   (  -0.01, -75.20) (  -0.13, -74.71)   56.69                80
 06/20/2019   18:29:35   (   0.02, -75.22) (  -0.04, -75.38)   19.06                80
 06/23/2019   06:34:53   (  -0.02, -75.24) (   0.13, -76.02)   88.40                80
 06/24/2019   06:13:18   (  -0.02, -75.26) (  -0.85, -71.45)  433.92                80
 06/25/2019   18:34:59   (   0.02, -75.28) (  -0.29, -76.69)  161.76                80
 06/26/2019   18:18:44   (   0.02, -75.29) (   0.75, -72.13)  361.01                80
 06/28/2019   06:40:16   (  -0.03, -75.32) (   0.45, -77.33)  229.37                80
 06/29/2019   06:18:41   (  -0.03, -75.34) (  -0.60, -72.76)  293.43                80