Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 6 1.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 06/01/2020   06:19:15   (   0.00, -75.20) (  -0.60, -72.66)  289.55                80
 06/02/2020   18:40:54   (  -0.00, -75.20) (  -0.62, -77.88)  305.87                80
 06/03/2020   18:24:38   (   0.00, -75.21) (   0.44, -73.31)  216.52                80
 06/05/2020   06:46:07   (  -0.00, -75.21) (   0.74, -78.50)  374.31                80
 06/06/2020   06:24:32   (  -0.01, -75.22) (  -0.32, -73.93)  148.16                80
 06/07/2020   18:46:10   (   0.01, -75.23) (  -0.90, -79.14)  446.77                80
 06/08/2020   18:29:55   (   0.00, -75.24) (   0.17, -74.57)   76.34                80
 06/11/2020   06:29:48   (  -0.00, -75.28) (   0.01, -75.18)   10.93                80
 06/13/2020   18:32:31   (  -0.00, -75.32) (  -0.10, -75.84)   59.06                80
 06/14/2020   18:16:15   (  -0.00, -75.34) (   0.91, -71.26)  465.27                80