Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2020 8 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/03/2020   22:32:33   (  -0.01,-137.18) (   0.43,-135.10)  236.46                80
 08/05/2020   10:54:03   (   0.01,-137.19) (   0.73,-140.29)  354.82                80
 08/06/2020   10:32:27   (   0.01,-137.19) (  -0.35,-135.72)  167.29                80
 08/07/2020   22:54:05   (  -0.00,-137.18) (  -0.86,-140.94)  428.72                80
 08/08/2020   22:37:48   (  -0.00,-137.18) (   0.15,-136.36)   93.26                80
 08/10/2020   10:59:19   (   0.01,-137.18) (   1.01,-141.55)  498.66                80
 08/11/2020   10:37:43   (   0.01,-137.18) (  -0.06,-136.98)   22.99                80
 08/13/2020   22:40:24   (  -0.01,-137.15) (  -0.12,-137.62)   53.42                80
 08/14/2020   22:24:07   (  -0.02,-137.14) (   0.90,-133.03)  467.39                80
 08/16/2020   10:45:38   (   0.02,-137.12) (   0.27,-138.23)  126.39                80