Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 10 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 10/09/2019   18:28:52   (  -0.00, -75.20) (  -0.02, -75.30)   11.48                80
 10/12/2019   06:34:08   (   0.00, -75.22) (   0.16, -75.93)   81.13                80
 10/13/2019   06:12:33   (   0.00, -75.23) (  -0.85, -71.36)  441.00                80
 10/14/2019   18:34:14   (  -0.00, -75.24) (  -0.28, -76.61)  154.98                80
 10/15/2019   18:17:59   (  -0.00, -75.25) (   0.73, -72.03)  367.50                80
 10/17/2019   06:39:30   (   0.00, -75.28) (   0.42, -77.24)  223.21                80
 10/18/2019   06:17:54   (   0.00, -75.29) (  -0.59, -72.66)  299.25                80
 10/19/2019   18:39:35   (  -0.00, -75.30) (  -0.59, -77.90)  296.36                80
 10/20/2019   18:23:19   (  -0.01, -75.31) (   0.42, -73.32)  226.36                80
 10/22/2019   06:44:50   (   0.02, -75.34) (   0.73, -78.53)  363.74                80