Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 7 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/03/2019   06:45:39   (  -0.02, -75.19) (   0.73, -78.63)  391.48                80
 07/04/2019   06:26:43   (  -0.02, -75.20) (  -0.25, -74.05)  129.75                80
 07/05/2019   18:45:44   (   0.01, -75.20) (  -0.88, -79.31)  466.86                80
 07/06/2019   18:29:29   (   0.01, -75.21) (   0.11, -74.73)   54.90                80
 07/09/2019   06:29:26   (   0.00, -75.23) (   0.06, -75.36)   15.80                80
 07/11/2019   18:32:12   (   0.00, -75.26) (  -0.19, -76.03)   88.53                80
 07/12/2019   18:15:57   (   0.00, -75.27) (   0.85, -71.47)  434.01                80
 07/14/2019   06:34:49   (  -0.01, -75.29) (   0.31, -76.67)  157.56                80
 07/15/2019   06:18:35   (  -0.01, -75.31) (  -0.73, -72.11)  365.25                80
 07/16/2019   18:37:35   (   0.01, -75.34) (  -0.43, -77.35)  228.89                80