Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 5 8.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/08/2020   18:17:10   (   0.02, -75.20) (   0.85, -71.58)  412.85                80
 05/10/2020   06:38:41   (  -0.02, -75.19) (   0.32, -76.77)  180.12                80
 05/11/2020   06:17:04   (  -0.02, -75.19) (  -0.68, -72.19)  341.66                80
 05/12/2020   18:38:42   (   0.01, -75.19) (  -0.52, -77.41)  253.25                80
 05/13/2020   18:22:27   (   0.01, -75.20) (   0.54, -72.84)  269.23                80
 05/15/2020   06:43:57   (  -0.01, -75.21) (   0.62, -78.03)  321.98                80
 05/16/2020   06:22:21   (  -0.01, -75.21) (  -0.38, -73.45)  200.79                80
 05/17/2020   18:44:00   (   0.00, -75.23) (  -0.76, -78.68)  393.03                80
 05/18/2020   18:27:44   (   0.00, -75.25) (   0.24, -74.10)  130.36                80
 05/20/2020   06:49:14   (  -0.00, -75.27) (   0.91, -79.30)  459.31                80
 05/21/2020   06:27:38   (  -0.00, -75.28) (  -0.15, -74.73)   64.14                80