Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 5 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/07/2020   18:33:26   (   0.01, -75.20) (  -0.21, -76.15)  108.74                80
 05/08/2020   18:17:10   (   0.02, -75.20) (   0.84, -71.58)  412.93                80
 05/10/2020   06:38:41   (  -0.01, -75.19) (   0.32, -76.77)  179.83                80
 05/11/2020   06:17:04   (  -0.01, -75.19) (  -0.68, -72.19)  341.99                80
 05/12/2020   18:38:42   (   0.01, -75.20) (  -0.52, -77.41)  253.02                80
 05/13/2020   18:22:27   (   0.01, -75.20) (   0.54, -72.84)  269.50                80
 05/15/2020   06:43:57   (  -0.00, -75.21) (   0.62, -78.03)  321.54                80
 05/16/2020   06:22:21   (  -0.00, -75.22) (  -0.39, -73.45)  201.28                80
 05/17/2020   18:44:00   (   0.00, -75.24) (  -0.75, -78.69)  392.60                80
 05/18/2020   18:27:44   (   0.00, -75.25) (   0.25, -74.10)  130.82                80
 05/20/2020   06:49:14   (  -0.00, -75.27) (   0.90, -79.30)  458.65                80