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   (  -0.02,-137.21) (  -0.06,-137.09)   14.64                80
 06/07/2019   22:39:12   (   0.00,-137.18) (  -0.12,-137.75)   65.45                80
 06/08/2019   22:22:57   (  -0.01,-137.18) (   0.86,-133.18)  455.22                80
 06/10/2019   10:44:29   (   0.01,-137.19) (   0.26,-138.39)  136.54                80
 06/11/2019   10:22:54   (   0.01,-137.18) (  -0.72,-133.81)  383.69                80
 06/12/2019   22:44:35   (  -0.00,-137.15) (  -0.44,-139.06)  218.34                80
 06/13/2019   22:28:21   (  -0.00,-137.14) (   0.60,-134.49)  301.70                80
 06/15/2019   10:47:12   (  -0.00,-137.15) (   0.59,-139.69)  290.92                80
 06/16/2019   10:30:58   (  -0.00,-137.13) (  -0.46,-135.13)  228.58                80