Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 8 10.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/10/2020   18:33:39   (   0.05, -75.21) (  -0.09, -75.94)   82.21                80
 08/11/2020   18:17:22   (   0.05, -75.21) (   0.93, -71.36)  439.52                80
 08/13/2020   06:36:12   (  -0.05, -75.20) (   0.24, -76.55)  153.79                80
 08/14/2020   06:19:56   (  -0.05, -75.20) (  -0.78, -71.97)  367.90                80
 08/15/2020   18:38:54   (   0.06, -75.20) (  -0.36, -77.20)  227.73                80
 08/16/2020   18:22:38   (   0.06, -75.19) (   0.66, -72.62)  294.23                80
 08/18/2020   06:41:28   (  -0.07, -75.19) (   0.51, -77.81)  298.44                80
 08/19/2020   06:25:12   (  -0.07, -75.19) (  -0.51, -73.23)  223.76                80
 08/20/2020   18:44:10   (   0.08, -75.20) (  -0.63, -78.46)  371.05                80
 08/21/2020   18:27:53   (   0.07, -75.20) (   0.39, -73.88)  151.70                80
 08/23/2020   06:46:44   (  -0.08, -75.21) (   0.77, -79.07)  439.64                80