Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 9 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)
 09/05/2019   06:34:28   (  -0.01, -75.19) (   0.15, -75.99)   90.70                80
 09/06/2019   06:12:52   (  -0.01, -75.19) (  -0.85, -71.42)  430.51                80
 09/07/2019   18:34:33   (   0.01, -75.20) (  -0.33, -76.66)  166.40                80
 09/08/2019   18:18:18   (   0.01, -75.20) (   0.73, -72.09)  355.22                80
 09/10/2019   06:39:49   (  -0.01, -75.21) (   0.46, -77.29)  237.02                80
 09/11/2019   06:18:15   (  -0.00, -75.22) (  -0.59, -72.73)  285.03                80
 09/12/2019   18:39:55   (   0.00, -75.24) (  -0.59, -77.97)  310.67                80
 09/13/2019   18:23:40   (   0.00, -75.25) (   0.41, -73.39)  211.87                80
 09/15/2019   06:45:12   (   0.00, -75.27) (   0.72, -78.60)  378.90                80
 09/16/2019   06:23:37   (   0.00, -75.29) (  -0.28, -74.03)  143.91                80
 09/17/2019   18:45:17   (  -0.00, -75.31) (  -0.91, -79.27)  450.87                80
 09/18/2019   18:29:02   (   0.00, -75.33) (   0.15, -74.70)   72.19                80