Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 9 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 09/27/2020   18:26:45   (   0.01, -75.19) (   0.39, -73.46)  196.76                80
 09/29/2020   06:48:15   (  -0.02, -75.19) (   0.77, -78.65)  395.04                80
 09/30/2020   06:26:38   (  -0.01, -75.19) (  -0.26, -74.07)  127.65                80
 10/01/2020   18:48:16   (   0.02, -75.21) (  -0.92, -79.29)  466.35                80
 10/02/2020   18:32:00   (   0.01, -75.22) (   0.10, -74.71)   56.91                80
 10/05/2020   06:31:53   (  -0.01, -75.24) (   0.02, -75.32)   10.16                80
 10/07/2020   18:34:35   (   0.01, -75.27) (  -0.17, -75.97)   80.01                80
 10/08/2020   18:18:18   (   0.01, -75.28) (   0.86, -71.38)  443.62                80
 10/10/2020   06:39:47   (  -0.01, -75.30) (   0.29, -76.58)  146.12                80