Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 8 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/23/2019   18:21:06   (   0.03, -75.23) (   0.57, -72.75)  281.77                80
 08/25/2019   06:42:39   (  -0.04, -75.22) (   0.59, -77.96)  313.04                80
 08/26/2019   06:21:04   (  -0.04, -75.22) (  -0.46, -73.40)  208.29                80
 08/27/2019   18:42:45   (   0.05, -75.24) (  -0.69, -78.64)  386.92                80
 08/28/2019   18:26:29   (   0.05, -75.25) (   0.30, -74.06)  134.74                80
 08/30/2019   06:48:01   (  -0.05, -75.25) (   0.85, -79.27)  459.09                80
 08/31/2019   06:26:26   (  -0.05, -75.25) (  -0.15, -74.70)   63.01                80
 09/02/2019   18:29:12   (   0.05, -75.30) (   0.04, -75.37)    8.57                80
 09/05/2019   06:34:29   (  -0.06, -75.32) (   0.10, -76.01)   78.13                80