Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 9 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 09/07/2019   18:34:33   (   0.01, -75.19) (  -0.31, -76.66)  166.77                80
 09/08/2019   18:18:17   (   0.01, -75.20) (   0.69, -72.08)  354.69                80
 09/10/2019   06:39:50   (  -0.00, -75.21) (   0.44, -77.30)  237.77                80
 09/11/2019   06:18:14   (  -0.00, -75.21) (  -0.56, -72.72)  284.07                80
 09/12/2019   18:39:54   (  -0.00, -75.22) (  -0.62, -77.96)  311.96                80
 09/13/2019   18:23:40   (  -0.00, -75.23) (   0.44, -73.39)  210.40                80
 09/15/2019   06:45:11   (   0.00, -75.26) (   0.74, -78.60)  380.58                80
 09/16/2019   06:23:36   (   0.00, -75.27) (  -0.26, -74.02)  142.03                80
 09/17/2019   18:45:16   (  -0.00, -75.29) (  -0.92, -79.26)  453.13                80
 09/18/2019   18:29:02   (  -0.00, -75.31) (   0.14, -74.70)   69.75                80