Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 6 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)
 06/11/2020   06:29:48   (   0.00, -75.16) (  -0.02, -75.18)    3.77                80
 06/13/2020   18:32:31   (  -0.00, -75.18) (  -0.14, -75.83)   74.10                80
 06/14/2020   18:16:15   (  -0.00, -75.19) (   0.86, -71.25)  448.92                80
 06/16/2020   06:37:45   (   0.00, -75.20) (   0.25, -76.45)  141.13                80
 06/17/2020   06:16:08   (  -0.00, -75.21) (  -0.75, -71.86)  381.93                80
 06/18/2020   18:37:48   (   0.00, -75.23) (  -0.41, -77.09)  212.02                80
 06/19/2020   18:21:31   (   0.01, -75.25) (   0.59, -72.51)  311.45                80
 06/21/2020   06:43:02   (  -0.00, -75.27) (   0.53, -77.71)  277.78                80
 06/22/2020   06:21:25   (  -0.00, -75.28) (  -0.47, -73.13)  245.64                80