Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2019 11 6.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 11/06/2019   10:21:52   (  -0.00,-137.21) (  -0.78,-133.68)  402.46                80
 11/07/2019   22:46:12   (   0.00,-137.21) (  -0.38,-138.92)  195.05                80
 11/08/2019   22:24:37   (   0.00,-137.21) (   0.64,-134.34)  326.36                80
 11/10/2019   10:48:48   (  -0.00,-137.22) (   0.54,-139.55)  265.88                80
 11/11/2019   10:27:13   (  -0.00,-137.21) (  -0.48,-134.97)  255.11                80
 11/12/2019   22:48:53   (   0.00,-137.20) (  -0.66,-140.21)  343.63                80
 11/13/2019   22:32:38   (   0.00,-137.19) (   0.35,-135.64)  176.85                80
 11/15/2019   10:51:29   (   0.00,-137.18) (   0.83,-140.84)  417.05                80
 11/16/2019   10:35:13   (   0.00,-137.17) (  -0.18,-136.26)  102.86                80
 11/17/2019   22:54:13   (  -0.01,-137.13) (  -1.00,-141.49)  497.44                80
 11/18/2019   22:37:57   (  -0.02,-137.12) (   0.01,-136.92)   22.14                80