Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 8 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/10/2022   11:06:19   (   0.06,-137.32) (   0.31,-138.31)  114.26                80
 08/11/2022   10:45:14   (   0.06,-137.31) (  -0.72,-133.86)  393.46                80
 08/12/2022   23:07:42   (  -0.06,-137.30) (  -0.47,-139.28)  225.07                80
 08/13/2022   22:51:56   (  -0.06,-137.29) (   0.50,-134.81)  282.74                80
 08/15/2022   11:13:12   (   0.05,-137.29) (   0.69,-140.19)  329.38                19
 08/16/2022   10:53:08   (   0.05,-137.29) (  -0.29,-135.72)  178.24                80
 08/17/2022   23:15:35   (  -0.05,-137.26) (  -0.90,-141.14)  440.88                80
 08/18/2022   22:59:50   (  -0.05,-137.25) (   0.08,-136.67)   66.36                80
 08/21/2022   11:01:02   (   0.04,-137.23) (   0.13,-137.58)   40.20                80
 08/22/2022   10:45:17   (   0.04,-137.22) (  -0.91,-133.13)  466.32                80