Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 9 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 09/17/2019   18:45:16   (  -0.01, -75.20) (  -0.91, -79.26)  462.23                80
 09/18/2019   18:29:01   (  -0.01, -75.20) (   0.09, -74.68)   59.35                80
 09/21/2019   06:31:38   (   0.01, -75.21) (   0.01, -75.32)   12.16                80
 09/23/2019   18:31:43   (  -0.01, -75.23) (  -0.20, -75.98)   86.49                80
 09/24/2019   18:15:28   (  -0.01, -75.23) (   0.86, -71.42)  435.45                80
 09/26/2019   06:36:59   (   0.01, -75.24) (   0.30, -76.62)  156.67                80
 09/27/2019   06:15:24   (   0.01, -75.25) (  -0.70, -72.04)  365.49                80
 09/28/2019   18:37:04   (  -0.01, -75.28) (  -0.49, -77.28)  229.55                80
 09/29/2019   18:20:50   (  -0.01, -75.29) (   0.58, -72.72)  293.16                80