Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 7 5.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/05/2020   18:18:23   (  -0.00, -75.20) (   0.79, -71.71)  398.15                80
 07/07/2020   06:39:53   (  -0.00, -75.20) (   0.39, -76.89)  193.25                80
 07/08/2020   06:18:17   (  -0.00, -75.21) (  -0.67, -72.32)  329.16                80
 07/09/2020   18:39:55   (   0.01, -75.22) (  -0.52, -77.55)  265.54                80
 07/10/2020   18:23:39   (   0.01, -75.23) (   0.49, -72.96)  257.63                80
 07/12/2020   06:45:09   (  -0.01, -75.25) (   0.64, -78.16)  331.97                80
 07/13/2020   06:23:33   (  -0.01, -75.26) (  -0.37, -73.58)  191.41                80
 07/14/2020   18:45:12   (   0.01, -75.28) (  -0.76, -78.81)  402.32                80
 07/15/2020   18:28:56   (   0.01, -75.30) (   0.26, -74.23)  121.44                80
 07/17/2020   06:50:26   (  -0.02, -75.33) (   0.89, -79.43)  467.32                80
 07/18/2020   06:28:50   (  -0.02, -75.34) (  -0.12, -74.84)   56.35                80