Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 7 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/30/2019   06:32:03   (  -0.04, -75.22) (   0.11, -76.03)   91.68                80
 07/31/2019   06:15:48   (  -0.04, -75.23) (  -0.88, -71.45)  430.65                80
 08/01/2019   18:34:48   (   0.05, -75.25) (  -0.27, -76.69)  163.97                80
 08/02/2019   18:18:32   (   0.05, -75.27) (   0.73, -72.12)  358.76                80
 08/04/2019   06:37:26   (  -0.05, -75.29) (   0.39, -77.34)  232.70                80
 08/05/2019   06:21:10   (  -0.05, -75.31) (  -0.60, -72.76)  290.50                80
 08/06/2019   18:40:11   (   0.06, -75.35) (  -0.54, -78.00)  302.74                80
 08/07/2019   18:23:56   (   0.06, -75.37) (   0.51, -73.44)  220.81                80
 08/09/2019   06:45:28   (  -0.06, -75.40) (   0.67, -78.65)  369.57                80
 08/10/2019   06:26:34   (  -0.06, -75.43) (  -0.38, -74.08)  154.20                80