Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 5 31.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/31/2020   06:40:51   (   0.00, -75.19) (   0.46, -77.23)  232.60                80
 06/01/2020   06:19:14   (   0.00, -75.19) (  -0.54, -72.65)  289.27                80
 06/02/2020   18:40:54   (  -0.00, -75.20) (  -0.62, -77.88)  306.34                80
 06/03/2020   18:24:38   (   0.00, -75.20) (   0.44, -73.31)  215.92                80
 06/05/2020   06:46:08   (  -0.00, -75.21) (   0.74, -78.50)  375.10                80
 06/06/2020   06:24:32   (  -0.01, -75.21) (  -0.32, -73.93)  147.26                80
 06/07/2020   18:46:10   (   0.01, -75.22) (  -0.90, -79.14)  447.87                80
 06/08/2020   18:29:55   (   0.00, -75.23) (   0.16, -74.57)   75.11                80
 06/11/2020   06:29:49   (  -0.00, -75.26) (  -0.05, -75.19)    9.52                80
 06/13/2020   18:32:32   (  -0.00, -75.30) (  -0.10, -75.84)   60.92                80