Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 5 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)
 05/19/2019   18:35:05   (  -0.00, -75.18) (  -0.32, -76.67)  169.30                80
 05/20/2019   18:18:50   (  -0.00, -75.18) (   0.66, -72.09)  351.47                80
 05/22/2019   06:40:22   (  -0.00, -75.17) (   0.47, -77.30)  242.56                80
 05/23/2019   06:18:48   (  -0.01, -75.17) (  -0.57, -72.74)  278.34                80
 05/24/2019   18:40:29   (   0.01, -75.18) (  -0.60, -77.98)  318.83                80
 05/25/2019   18:24:13   (   0.01, -75.19) (   0.39, -73.40)  202.72                80
 05/27/2019   06:45:46   (  -0.01, -75.20) (   0.74, -78.62)  389.68                80
 05/28/2019   06:24:11   (  -0.01, -75.20) (  -0.30, -74.05)  132.14                80
 05/29/2019   18:45:52   (   0.01, -75.22) (  -0.92, -79.29)  464.02                80
 05/30/2019   18:29:37   (   0.02, -75.23) (   0.12, -74.72)   58.24                80