Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 10 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 10/19/2019   18:39:35   (  -0.00, -75.20) (  -0.61, -77.89)  306.61                80
 10/20/2019   18:23:19   (   0.00, -75.21) (   0.40, -73.32)  214.63                80
 10/22/2019   06:44:50   (  -0.00, -75.20) (   0.75, -78.52)  378.80                80
 10/23/2019   06:23:15   (  -0.01, -75.20) (  -0.26, -73.95)  142.63                80
 10/24/2019   18:44:56   (   0.01, -75.22) (  -0.86, -79.20)  453.15                80
 10/25/2019   18:26:01   (   0.00, -75.22) (   0.16, -74.62)   69.00                80
 10/28/2019   06:31:16   (   0.02, -75.24) (   0.05, -75.24)    3.23                80
 10/30/2019   18:31:21   (  -0.02, -75.28) (  -0.14, -75.92)   72.18                80
 10/31/2019   18:12:26   (  -0.02, -75.29) (   0.87, -71.34)  450.64                80