Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2019 6 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 06/05/2019   10:36:27   (  -0.01,-137.20) (  -0.07,-137.09)   13.20                80
 06/07/2019   22:39:13   (   0.00,-137.15) (  -0.12,-137.76)   68.29                80
 06/08/2019   22:22:57   (  -0.01,-137.15) (   0.86,-133.18)  451.87                80
 06/10/2019   10:44:29   (   0.00,-137.15) (   0.26,-138.39)  140.83                80
 06/11/2019   10:22:54   (   0.01,-137.14) (  -0.72,-133.81)  378.89                80
 06/12/2019   22:44:35   (  -0.00,-137.10) (  -0.44,-139.06)  223.80                80
 06/13/2019   22:28:21   (  -0.00,-137.08) (   0.60,-134.49)  295.75                80
 06/15/2019   10:47:12   (  -0.00,-137.08) (   0.59,-139.69)  297.76                80
 06/16/2019   10:30:58   (  -0.00,-137.06) (  -0.46,-135.13)  221.23                80