Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 11 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 11/26/2021   06:27:40   (   0.02, -75.21) (  -0.81, -71.65)  406.66                80
 11/27/2021   18:50:12   (  -0.01, -75.23) (  -0.45, -77.08)  211.29                80
 11/28/2021   18:34:32   (  -0.01, -75.24) (   0.58, -72.65)  296.07                80
 11/30/2021   06:56:55   (   0.01, -75.25) (   0.65, -78.04)  318.49                80
 12/01/2021   06:35:55   (   0.01, -75.27) (  -0.35, -73.61)  188.76                80
 12/02/2021   18:58:29   (  -0.01, -75.29) (  -0.86, -79.05)  429.37                80
 12/03/2021   18:42:50   (  -0.01, -75.30) (   0.17, -74.63)   77.95                80
 12/06/2021   06:46:54   (   0.01, -75.33) (   0.06, -75.59)   29.71                80
 12/07/2021   06:25:55   (   0.00, -75.35) (  -0.94, -71.16)  477.24                80
 12/08/2021   18:48:30   (   0.00, -75.38) (  -0.30, -76.61)  141.01                80