Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 2 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 02/27/2021   18:26:20   (   0.02, -75.20) (   0.60, -72.63)  292.80                80
 03/01/2021   06:47:48   (  -0.02, -75.21) (   0.54, -77.81)  296.64                80
 03/02/2021   06:26:11   (  -0.02, -75.21) (  -0.47, -73.22)  226.34                80
 03/03/2021   18:47:48   (   0.02, -75.21) (  -0.70, -78.44)  368.03                80
 03/04/2021   18:31:31   (   0.02, -75.22) (   0.31, -73.85)  155.42                80
 03/06/2021   06:52:59   (  -0.02, -75.23) (   0.82, -79.04)  433.10                80
 03/07/2021   06:31:21   (  -0.01, -75.24) (  -0.19, -74.45)   90.36                80
 03/09/2021   18:36:41   (  -0.00, -75.26) (   0.04, -75.07)   20.80                80
 03/12/2021   06:39:12   (   0.00, -75.30) (   0.09, -75.67)   41.83                80