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

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 11/11/2019   10:27:13   (  -0.00,-137.21) (  -0.49,-134.97)  255.64                80
 11/12/2019   22:48:53   (   0.00,-137.20) (  -0.65,-140.21)  342.40                80
 11/13/2019   22:32:38   (   0.00,-137.20) (   0.37,-135.64)  178.24                80
 11/15/2019   10:54:09   (   0.00,-137.19) (   0.81,-140.84)  415.89                80
 11/16/2019   10:32:33   (   0.00,-137.18) (  -0.20,-136.26)  104.10                80
 11/17/2019   22:54:13   (  -0.01,-137.15) (  -0.98,-141.50)  495.64                80
 11/18/2019   22:37:57   (  -0.01,-137.13) (   0.04,-136.92)   23.96                80
 11/21/2019   10:40:33   (   0.01,-137.09) (   0.13,-137.54)   52.33                80
 11/22/2019   10:18:58   (   0.01,-137.07) (  -0.89,-132.97)  466.89                80
 11/23/2019   22:40:37   (  -0.01,-137.03) (  -0.29,-138.20)  133.89                80
 11/24/2019   22:24:21   (  -0.01,-137.01) (   0.74,-133.63)  385.12                80