Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 10 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)
 10/29/2021   06:56:18   (  -0.01, -75.22) (   0.64, -78.15)  333.28                80
 10/30/2021   06:34:40   (  -0.01, -75.23) (  -0.38, -73.55)  190.85                80
 10/31/2021   18:56:15   (   0.01, -75.25) (  -0.81, -78.75)  400.05                80
 11/01/2021   18:39:58   (   0.01, -75.26) (   0.28, -74.17)  124.74                80
 11/03/2021   07:01:23   (  -0.00, -75.28) (   0.92, -79.33)  462.63                80
 11/04/2021   06:39:45   (  -0.00, -75.29) (  -0.10, -74.74)   62.27                80
 11/06/2021   18:42:22   (  -0.01, -75.33) (   0.00, -75.36)    3.72                80
 11/09/2021   06:47:30   (   0.01, -75.36) (   0.12, -75.94)   65.05                80
 11/10/2021   06:25:52   (   0.01, -75.38) (  -0.91, -71.34)  460.03                80