Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 9 1.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 09/02/2019   18:29:10   (  -0.01, -75.20) (  -0.04, -75.35)   17.58                80
 09/05/2019   06:34:27   (   0.01, -75.21) (   0.18, -75.99)   88.66                80
 09/06/2019   06:12:52   (   0.01, -75.22) (  -0.82, -71.41)  433.39                80
 09/07/2019   18:34:32   (  -0.01, -75.24) (  -0.35, -76.65)  161.37                80
 09/08/2019   18:15:38   (  -0.01, -75.25) (   0.71, -72.09)  361.12                80
 09/10/2019   06:39:49   (   0.02, -75.27) (   0.48, -77.29)  230.50                80
 09/11/2019   06:18:14   (   0.02, -75.28) (  -0.58, -72.72)  292.35                80
 09/12/2019   18:42:35   (  -0.02, -75.32) (  -0.60, -77.97)  301.23                80
 09/13/2019   18:20:59   (  -0.02, -75.34) (   0.40, -73.39)  222.11                80