Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2019 10 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 10/28/2019   22:35:31   (  -0.01,-137.20) (   0.20,-136.34)   98.36                80
 10/30/2019   10:54:22   (   0.01,-137.19) (   0.96,-141.54)  495.65                80
 10/31/2019   10:38:07   (   0.01,-137.18) (  -0.05,-136.96)   24.75                80
 11/02/2019   22:38:11   (  -0.00,-137.15) (  -0.10,-137.63)   53.98                80
 11/03/2019   22:21:56   (  -0.00,-137.14) (   0.91,-133.05)  466.02                80
 11/05/2019   10:40:47   (   0.00,-137.12) (   0.26,-138.25)  129.14                80
 11/06/2019   10:24:32   (  -0.00,-137.11) (  -0.75,-133.68)  390.65                80
 11/07/2019   22:43:32   (   0.00,-137.09) (  -0.39,-138.92)  208.82                80
 11/08/2019   22:27:17   (   0.00,-137.07) (   0.62,-134.35)  310.78                80
 11/10/2019   10:46:08   (  -0.00,-137.04) (   0.56,-139.55)  285.21                80