Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 4 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 04/26/2019   06:32:18   (  -0.01, -75.20) (   0.03, -75.31)   13.13                80
 04/28/2019   18:32:25   (   0.00, -75.22) (  -0.15, -75.99)   87.08                80
 04/29/2019   18:16:11   (   0.00, -75.23) (   0.88, -71.42)  434.86                80
 05/01/2019   06:37:43   (  -0.00, -75.24) (   0.30, -76.63)  158.19                80
 05/02/2019   06:16:08   (  -0.00, -75.25) (  -0.74, -72.07)  363.90                80
 05/03/2019   18:37:49   (   0.00, -75.28) (  -0.47, -77.30)  230.73                80
 05/04/2019   18:21:34   (   0.00, -75.30) (   0.56, -72.73)  291.77                80
 05/06/2019   06:43:06   (   0.00, -75.31) (   0.62, -77.94)  300.33                80
 05/07/2019   06:21:32   (   0.00, -75.33) (  -0.41, -73.38)  222.07                80