Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 10 8.  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   18:28:53   (   0.00, -75.20) (  -0.01, -75.31)   11.83                80
 10/12/2019   06:34:08   (   0.00, -75.22) (   0.15, -75.94)   81.50                80
 10/13/2019   06:12:33   (   0.00, -75.23) (  -0.85, -71.36)  440.57                80
 10/14/2019   18:34:13   (   0.00, -75.24) (  -0.33, -76.60)  155.58                80
 10/15/2019   18:17:59   (  -0.00, -75.25) (   0.74, -72.03)  366.84                80
 10/17/2019   06:39:30   (   0.00, -75.27) (   0.42, -77.24)  223.95                80
 10/18/2019   06:17:55   (   0.00, -75.28) (  -0.59, -72.66)  298.47                80
 10/19/2019   18:39:35   (  -0.00, -75.29) (  -0.58, -77.90)  297.39                80
 10/20/2019   18:23:19   (  -0.00, -75.31) (   0.43, -73.33)  225.17                80