Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2020 8 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/07/2020   22:54:05   (   0.00,-137.17) (  -0.86,-140.94)  430.09                80
 08/08/2020   22:37:49   (   0.00,-137.17) (   0.21,-136.37)   91.87                80
 08/11/2020   10:37:43   (   0.00,-137.16) (  -0.06,-136.98)   20.56                80
 08/13/2020   22:40:24   (  -0.01,-137.14) (  -0.13,-137.61)   55.11                80
 08/14/2020   22:24:08   (  -0.01,-137.12) (   0.88,-133.03)  465.70                80
 08/16/2020   10:45:38   (   0.01,-137.10) (   0.29,-138.22)  128.99                80
 08/17/2020   10:24:02   (   0.01,-137.08) (  -0.78,-133.65)  391.22                80
 08/18/2020   22:45:40   (  -0.02,-137.05) (  -0.42,-138.87)  207.18                80
 08/19/2020   22:29:23   (  -0.01,-137.03) (   0.59,-134.29)  312.70                80