Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 9 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)
 09/12/2022   10:58:24   (   0.07,-137.32) (  -0.24,-136.09)  140.26                80
 09/13/2022   23:18:09   (  -0.06,-137.31) (  -1.01,-141.49)  476.86                80
 09/14/2022   23:02:24   (  -0.06,-137.31) (  -0.02,-137.03)   31.55                80
 09/17/2022   11:03:36   (   0.06,-137.31) (   0.23,-137.94)   72.93                80
 09/18/2022   10:47:51   (   0.06,-137.30) (  -0.82,-133.49)  434.74                80
 09/19/2022   23:07:37   (  -0.05,-137.28) (  -0.41,-138.89)  183.97                80
 09/20/2022   22:51:51   (  -0.04,-137.27) (   0.59,-134.43)  323.34                80
 09/22/2022   11:11:28   (   0.03,-137.26) (   0.62,-139.80)  290.29                80
 09/23/2022   10:55:43   (   0.03,-137.25) (  -0.37,-135.34)  216.78                80
 09/24/2022   23:15:28   (  -0.03,-137.22) (  -0.84,-140.74)  402.62                80