Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 7 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)
 07/06/2022   22:49:08   (  -0.05,-137.21) (   0.43,-135.13)  238.11                80
 07/08/2022   11:14:06   (   0.05,-137.25) (   0.78,-140.50)  371.38                80
 07/09/2022   10:53:02   (   0.04,-137.26) (  -0.23,-136.05)  137.66                80
 07/10/2022   23:18:08   (  -0.04,-137.25) (  -1.00,-141.45)  479.10                80
 07/11/2022   22:57:04   (  -0.03,-137.26) (   0.02,-137.00)   29.25                80
 07/14/2022   11:03:37   (   0.02,-137.27) (   0.16,-137.92)   74.13                80
 07/15/2022   10:42:33   (   0.02,-137.27) (  -0.85,-133.47)  433.91                80
 07/16/2022   23:07:39   (  -0.02,-137.26) (  -0.38,-138.87)  183.86                80
 07/17/2022   22:46:35   (  -0.02,-137.26) (   0.64,-134.42)  324.29                80
 07/19/2022   11:11:32   (   0.03,-137.27) (   0.61,-139.79)  287.26                80
 07/20/2022   10:50:28   (   0.02,-137.27) (  -0.41,-135.33)  220.60                80