Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 7 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/16/2019   18:37:34   (   0.02, -75.19) (  -0.48, -77.34)  244.81                80
 07/17/2019   18:21:20   (   0.02, -75.19) (   0.57, -72.77)  276.31                80
 07/19/2019   06:42:52   (  -0.02, -75.20) (   0.60, -77.98)  316.51                80
 07/20/2019   06:21:16   (  -0.02, -75.21) (  -0.39, -73.40)  205.03                80
 07/21/2019   18:42:57   (   0.02, -75.21) (  -0.77, -78.64)  391.83                80
 07/22/2019   18:26:42   (   0.02, -75.22) (   0.29, -74.08)  130.22                80
 07/24/2019   06:45:35   (  -0.02, -75.24) (   0.89, -79.29)  461.34                80
 07/25/2019   06:29:20   (  -0.02, -75.25) (  -0.17, -74.72)   60.91                80
 07/27/2019   18:29:25   (   0.02, -75.27) (   0.01, -75.39)   13.09                80