Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 2 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 03/01/2021   06:47:48   (  -0.02, -75.20) (   0.55, -77.81)  296.72                80
 03/02/2021   06:26:11   (  -0.02, -75.21) (  -0.46, -73.22)  226.26                80
 03/03/2021   18:47:48   (   0.02, -75.21) (  -0.72, -78.44)  367.95                80
 03/04/2021   18:31:31   (   0.02, -75.22) (   0.36, -73.86)  155.53                80
 03/06/2021   06:52:59   (  -0.02, -75.23) (   0.84, -79.03)  433.13                80
 03/07/2021   06:31:21   (  -0.01, -75.24) (  -0.17, -74.44)   90.37                80
 03/09/2021   18:36:41   (  -0.00, -75.26) (   0.02, -75.07)   21.04                80
 03/12/2021   06:39:12   (   0.00, -75.30) (   0.11, -75.66)   41.89                80
 03/13/2021   06:17:35   (   0.00, -75.32) (  -0.96, -71.09)  482.80                80