Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 5 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)
 05/10/2020   06:38:40   (  -0.01, -75.19) (   0.34, -76.77)  179.68                80
 05/11/2020   06:17:04   (  -0.01, -75.19) (  -0.66, -72.18)  342.58                80
 05/12/2020   18:38:43   (   0.01, -75.22) (  -0.48, -77.42)  250.98                80
 05/13/2020   18:22:28   (   0.01, -75.23) (   0.57, -72.85)  272.01                80
 05/15/2020   06:43:57   (  -0.01, -75.24) (   0.64, -78.03)  318.95                80
 05/16/2020   06:22:22   (  -0.01, -75.25) (  -0.41, -73.46)  204.31                80
 05/17/2020   18:44:01   (   0.00, -75.28) (  -0.73, -78.69)  388.19                80
 05/18/2020   18:27:44   (   0.00, -75.30) (   0.27, -74.11)  135.70                80
 05/20/2020   06:49:15   (  -0.00, -75.32) (   0.89, -79.30)  453.64                80
 05/21/2020   06:27:39   (  -0.00, -75.34) (  -0.17, -74.73)   70.31                80