Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2019 7 2.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/02/2019   10:25:32   (  -0.02,-137.21) (  -0.60,-134.48)  310.66                80
 07/03/2019   22:47:13   (   0.02,-137.18) (  -0.53,-139.73)  289.80                80
 07/04/2019   22:30:58   (   0.01,-137.17) (   0.45,-135.15)  230.47                80
 07/06/2019   10:49:50   (  -0.01,-137.17) (   0.69,-140.36)  362.75                80
 07/07/2019   10:33:34   (  -0.00,-137.16) (  -0.30,-135.78)  157.19                80
 07/08/2019   22:52:35   (   0.01,-137.13) (  -0.89,-141.02)  444.23                80
 07/09/2019   22:36:20   (   0.00,-137.11) (   0.16,-136.45)   75.54                80
 07/12/2019   10:36:17   (  -0.01,-137.09) (   0.01,-137.08)    2.34                80
 07/14/2019   22:39:03   (   0.01,-137.03) (  -0.13,-137.76)   82.90                80
 07/15/2019   22:22:47   (   0.01,-137.01) (   0.86,-133.18)  436.02                80