Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 5 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)
 05/25/2019   18:24:15   (   0.02, -75.19) (   0.44, -73.41)  203.36                80
 05/27/2019   06:45:46   (  -0.00, -75.19) (   0.75, -78.62)  389.73                80
 05/28/2019   06:24:10   (   0.00, -75.20) (  -0.23, -74.04)  132.00                80
 05/29/2019   18:45:52   (  -0.00, -75.22) (  -0.94, -79.28)  464.01                80
 05/30/2019   18:29:37   (  -0.00, -75.23) (   0.10, -74.71)   57.92                80
 06/02/2019   06:32:15   (  -0.01, -75.25) (  -0.01, -75.36)   13.02                80
 06/04/2019   18:32:21   (   0.01, -75.28) (  -0.17, -76.03)   86.23                80
 06/05/2019   18:16:06   (   0.01, -75.29) (   0.87, -71.46)  436.13                80
 06/07/2019   06:37:38   (  -0.01, -75.30) (   0.32, -76.66)  155.65                80