Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 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)
 07/05/2019   18:45:44   (   0.01, -75.19) (  -0.91, -79.30)  468.18                80
 07/06/2019   18:29:29   (   0.01, -75.19) (   0.14, -74.73)   52.89                80
 07/09/2019   06:29:26   (  -0.02, -75.20) (   0.02, -75.36)   18.78                80
 07/11/2019   18:32:12   (   0.02, -75.22) (  -0.16, -76.04)   93.48                80
 07/12/2019   18:15:57   (   0.02, -75.23) (   0.84, -71.46)  428.51                80
 07/14/2019   06:34:49   (  -0.02, -75.24) (   0.33, -76.67)  163.50                80
 07/15/2019   06:18:34   (  -0.02, -75.25) (  -0.72, -72.10)  358.77                80
 07/16/2019   18:37:35   (   0.03, -75.27) (  -0.44, -77.35)  236.57                80
 07/17/2019   18:21:20   (   0.02, -75.29) (   0.61, -72.78)  286.17                80