Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 10 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 10/13/2020   18:23:32   (   0.01, -75.24) (   0.57, -72.62)  297.66                80
 10/15/2020   06:45:02   (  -0.01, -75.24) (   0.57, -77.82)  293.27                80
 10/16/2020   06:23:25   (  -0.01, -75.26) (  -0.46, -73.24)  230.30                80
 10/17/2020   18:45:04   (   0.01, -75.29) (  -0.72, -78.46)  361.89                80
 10/18/2020   18:28:47   (   0.00, -75.30) (   0.31, -73.88)  162.00                80
 10/20/2020   06:50:16   (  -0.01, -75.31) (   0.82, -79.07)  428.01                80
 10/21/2020   06:28:40   (  -0.00, -75.33) (  -0.21, -74.49)   95.92                80
 10/22/2020   18:50:18   (   0.00, -75.36) (  -0.97, -79.71)  495.78                80
 10/23/2020   18:34:02   (   0.00, -75.38) (   0.07, -75.13)   28.64                80
 10/26/2020   06:36:35   (  -0.01, -75.43) (   0.04, -75.75)   35.30                80