Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 8 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/28/2019   18:26:29   (   0.04, -75.20) (   0.28, -74.06)  129.51                80
 08/30/2019   06:48:01   (  -0.04, -75.20) (   0.87, -79.27)  464.08                80
 08/31/2019   06:26:25   (  -0.04, -75.21) (  -0.13, -74.69)   58.13                80
 09/02/2019   18:29:11   (   0.04, -75.25) (   0.02, -75.37)   13.57                80
 09/05/2019   06:34:28   (  -0.05, -75.28) (   0.12, -76.00)   82.92                80
 09/06/2019   06:12:54   (  -0.05, -75.29) (  -0.94, -71.44)  439.98                80
 09/07/2019   18:34:34   (   0.05, -75.33) (  -0.23, -76.68)  153.27                80
 09/08/2019   18:18:19   (   0.06, -75.35) (   0.77, -72.10)  370.01                80
 09/10/2019   06:39:51   (  -0.06, -75.38) (   0.36, -77.32)  220.90                80