Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 10 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 10/15/2019   18:17:58   (   0.00, -75.20) (   0.71, -72.03)  362.00                80
 10/17/2019   06:39:30   (  -0.00, -75.20) (   0.44, -77.23)  231.11                80
 10/18/2019   06:17:54   (  -0.00, -75.20) (  -0.57, -72.66)  290.22                80
 10/19/2019   18:39:34   (   0.01, -75.21) (  -0.61, -77.89)  306.63                80
 10/20/2019   18:23:20   (   0.01, -75.21) (   0.45, -73.33)  214.81                80
 10/22/2019   06:44:51   (  -0.02, -75.21) (   0.70, -78.54)  377.99                80
 10/23/2019   06:23:16   (  -0.02, -75.22) (  -0.31, -73.96)  143.68                80
 10/24/2019   18:44:56   (   0.02, -75.23) (  -0.87, -79.20)  452.33                80
 10/25/2019   18:28:41   (   0.02, -75.24) (   0.15, -74.62)   69.97                80
 10/28/2019   06:31:18   (  -0.02, -75.27) (  -0.05, -75.26)    3.23                80