Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 10 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)
 10/25/2021   06:29:36   (  -0.02, -75.20) (  -0.69, -72.38)  322.92                80
 10/26/2021   18:53:51   (   0.02, -75.21) (  -0.51, -77.58)  269.02                80
 10/27/2021   18:32:12   (   0.02, -75.22) (   0.52, -72.98)  254.99                80
 10/29/2021   06:56:19   (  -0.02, -75.22) (   0.62, -78.15)  333.43                80
 10/30/2021   06:34:40   (  -0.02, -75.23) (  -0.40, -73.56)  190.69                80
 10/31/2021   18:58:56   (   0.02, -75.25) (  -0.79, -78.76)  400.47                80
 11/01/2021   18:37:18   (   0.02, -75.26) (   0.30, -74.18)  124.31                80
 11/03/2021   07:01:23   (  -0.01, -75.28) (   0.91, -79.34)  462.65                80
 11/04/2021   06:39:45   (  -0.01, -75.29) (  -0.12, -74.74)   62.17                80
 11/06/2021   18:45:02   (  -0.00, -75.33) (  -0.03, -75.35)    4.48                80