Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 8 9.  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   18:33:38   (   0.05, -75.24) (  -0.13, -75.93)   79.20                80
 08/11/2020   18:17:22   (   0.05, -75.25) (   0.94, -71.36)  444.09                80
 08/13/2020   06:38:53   (  -0.05, -75.26) (   0.22, -76.55)  147.15                80
 08/14/2020   06:19:56   (  -0.05, -75.27) (  -0.79, -71.97)  376.07                80
 08/15/2020   18:38:55   (   0.06, -75.30) (  -0.35, -77.20)  216.96                80
 08/16/2020   18:22:38   (   0.06, -75.31) (   0.67, -72.62)  306.54                80
 08/18/2020   06:41:28   (  -0.07, -75.32) (   0.50, -77.81)  283.99                80
 08/19/2020   06:25:12   (  -0.07, -75.34) (  -0.52, -73.23)  239.73                80
 08/20/2020   18:44:10   (   0.08, -75.37) (  -0.62, -78.46)  352.55                80
 08/21/2020   18:27:54   (   0.07, -75.39) (   0.40, -73.88)  171.74                80