Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 9 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 09/29/2019   18:20:50   (   0.01, -75.19) (   0.58, -72.71)  282.91                80
 10/01/2019   06:42:21   (  -0.01, -75.19) (   0.58, -77.92)  310.36                80
 10/02/2019   06:20:46   (  -0.01, -75.19) (  -0.42, -73.34)  211.05                80
 10/03/2019   18:42:26   (   0.01, -75.20) (  -0.77, -78.58)  385.57                80
 10/04/2019   18:26:11   (   0.02, -75.21) (   0.29, -74.02)  136.11                80
 10/06/2019   06:47:43   (  -0.02, -75.21) (   0.86, -79.22)  456.29                80
 10/07/2019   06:26:07   (  -0.02, -75.22) (  -0.15, -74.64)   65.70                80
 10/09/2019   18:28:53   (   0.03, -75.25) (   0.02, -75.32)    7.29                80
 10/12/2019   06:34:09   (  -0.03, -75.29) (   0.13, -75.95)   75.17                80