Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 9 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)
 09/05/2019   06:34:27   (   0.00, -75.21) (   0.17, -75.99)   89.14                80
 09/06/2019   06:12:52   (   0.00, -75.21) (  -0.83, -71.41)  432.81                80
 09/07/2019   18:34:32   (  -0.00, -75.23) (  -0.34, -76.65)  162.39                80
 09/08/2019   18:18:18   (  -0.01, -75.25) (   0.71, -72.09)  360.00                80
 09/10/2019   06:39:49   (   0.01, -75.26) (   0.48, -77.29)  231.58                80
 09/11/2019   06:18:15   (   0.01, -75.28) (  -0.58, -72.73)  291.17                80
 09/12/2019   18:42:35   (  -0.01, -75.31) (  -0.60, -77.97)  302.85                80
 09/13/2019   18:21:00   (  -0.01, -75.33) (   0.40, -73.39)  220.39                80
 09/15/2019   06:45:12   (   0.02, -75.36) (   0.73, -78.60)  369.72                80
 09/16/2019   06:23:36   (   0.01, -75.38) (  -0.27, -74.03)  153.77                80