Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2022 5 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/20/2022   18:50:45   (   0.01, -75.20) (  -0.12, -75.89)   77.63                80
 05/21/2022   18:32:20   (   0.01, -75.21) (   0.86, -71.43)  430.50                80
 05/23/2022   06:57:19   (  -0.00, -75.21) (   0.34, -76.81)  182.11                80
 05/24/2022   06:36:15   (  -0.01, -75.22) (  -0.64, -72.35)  326.43                80
 05/25/2022   19:01:22   (   0.00, -75.23) (  -0.56, -77.77)  288.51                80
 05/26/2022   18:42:58   (   0.01, -75.25) (   0.43, -73.31)  220.70                80
 05/28/2022   07:05:17   (  -0.00, -75.27) (   0.79, -78.69)  390.35                80
 05/29/2022   06:44:14   (  -0.01, -75.28) (  -0.26, -74.24)  118.91                80
 05/30/2022   19:06:40   (   0.01, -75.30) (  -0.98, -79.65)  495.47                80
 05/31/2022   18:50:55   (   0.01, -75.32) (   0.01, -75.19)   14.53                80