Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 9 4.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 09/05/2019   06:34:28   (   0.00, -75.20) (   0.16, -75.99)   89.50                80
 09/06/2019   06:12:52   (   0.00, -75.21) (  -0.84, -71.42)  432.26                80
 09/07/2019   18:34:33   (  -0.01, -75.22) (  -0.33, -76.66)  163.52                80
 09/08/2019   18:18:18   (  -0.01, -75.23) (   0.72, -72.09)  358.62                80
 09/10/2019   06:39:49   (   0.01, -75.25) (   0.47, -77.29)  233.03                80
 09/11/2019   06:18:15   (   0.01, -75.26) (  -0.58, -72.73)  289.48                80
 09/12/2019   18:42:35   (  -0.01, -75.29) (  -0.60, -77.97)  305.14                80
 09/13/2019   18:21:00   (  -0.01, -75.30) (   0.40, -73.39)  217.88                80
 09/15/2019   06:45:12   (   0.01, -75.33) (   0.73, -78.60)  372.30                80
 09/16/2019   06:23:37   (   0.01, -75.35) (  -0.27, -74.03)  150.98                80
 09/17/2019   18:47:58   (  -0.01, -75.39) (  -0.86, -79.28)  442.71                80