Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 1 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)
 01/09/2020   06:49:10   (   0.04, -75.21) (   1.02, -79.52)  491.67                80
 01/10/2020   06:27:35   (   0.04, -75.21) (  -0.01, -74.94)   30.13                80
 01/12/2020   18:32:59   (  -0.05, -75.22) (  -0.15, -75.60)   43.39                80
 01/13/2020   18:11:23   (  -0.04, -75.23) (   0.88, -71.03)  478.90                80
 01/15/2020   06:35:35   (   0.05, -75.25) (   0.26, -76.23)  111.91                80
 01/16/2020   06:13:59   (   0.04, -75.26) (  -0.77, -71.66)  410.64                80
 01/17/2020   18:38:18   (  -0.05, -75.28) (  -0.42, -76.89)  183.65                80
 01/18/2020   18:16:43   (  -0.05, -75.29) (   0.61, -72.31)  339.39                80
 01/20/2020   06:40:54   (   0.06, -75.32) (   0.53, -77.52)  250.08                80
 01/21/2020   06:19:19   (   0.06, -75.33) (  -0.50, -72.94)  273.14                80
 01/22/2020   18:43:38   (  -0.07, -75.36) (  -0.69, -78.17)  320.46                80