Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 6 26.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 06/26/2019   18:18:43   (  -0.01, -75.20) (   0.69, -72.11)  352.18                80
 06/28/2019   06:37:36   (   0.00, -75.20) (   0.45, -77.33)  242.01                80
 06/29/2019   06:21:20   (  -0.00, -75.20) (  -0.54, -72.75)  278.84                80
 06/30/2019   18:40:21   (   0.01, -75.20) (  -0.61, -78.00)  318.69                80
 07/01/2019   18:24:06   (   0.01, -75.20) (   0.38, -73.42)  202.39                80
 07/03/2019   06:42:58   (  -0.01, -75.20) (   0.76, -78.63)  391.34                80
 07/04/2019   06:26:44   (  -0.01, -75.20) (  -0.28, -74.06)  129.92                80
 07/05/2019   18:45:44   (   0.00, -75.20) (  -0.91, -79.30)  466.81                80
 07/06/2019   18:29:29   (  -0.00, -75.21) (   0.08, -74.72)   54.99                80
 07/09/2019   06:32:06   (   0.01, -75.23) (   0.03, -75.37)   15.60                80