Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 10 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)
 10/04/2019   18:26:11   (  -0.01, -75.20) (   0.28, -74.01)  136.09                80
 10/06/2019   06:47:42   (   0.00, -75.21) (   0.87, -79.22)  455.77                80
 10/07/2019   06:26:07   (   0.00, -75.22) (  -0.13, -74.64)   66.19                80
 10/09/2019   18:28:53   (   0.00, -75.24) (   0.01, -75.31)    7.79                80
 10/12/2019   06:34:09   (  -0.00, -75.28) (   0.14, -75.94)   74.87                80
 10/13/2019   06:12:33   (  -0.00, -75.30) (  -0.86, -71.36)  448.16                80
 10/14/2019   18:34:14   (  -0.00, -75.32) (  -0.26, -76.62)  146.51                80
 10/15/2019   18:17:59   (  -0.00, -75.34) (   0.75, -72.04)  376.88                80
 10/17/2019   06:39:30   (   0.00, -75.38) (   0.41, -77.24)  212.45                80