Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 10 10.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 10/10/2020   06:39:48   (  -0.00, -75.24) (   0.27, -76.57)  151.59                80
 10/11/2020   06:18:11   (   0.00, -75.25) (  -0.75, -71.99)  371.68                80
 10/12/2020   18:39:49   (   0.00, -75.28) (  -0.43, -77.21)  220.29                80
 10/13/2020   18:23:33   (   0.00, -75.30) (   0.59, -72.63)  303.50                80
 10/15/2020   06:45:02   (  -0.01, -75.30) (   0.55, -77.82)  286.98                80
 10/16/2020   06:23:26   (  -0.00, -75.32) (  -0.48, -73.24)  237.02                80
 10/17/2020   18:45:04   (   0.00, -75.36) (  -0.70, -78.47)  354.15                80
 10/18/2020   18:28:48   (   0.00, -75.38) (   0.33, -73.88)  170.23                80
 10/20/2020   06:50:17   (  -0.00, -75.40) (   0.81, -79.08)  419.26                80
 10/21/2020   06:28:40   (   0.00, -75.42) (  -0.22, -74.50)  105.06                80
 10/22/2020   18:50:19   (   0.00, -75.46) (  -0.96, -79.72)  485.70                80
 10/23/2020   18:34:02   (   0.00, -75.48) (   0.07, -75.14)   39.20                80