Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 6 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)
 06/07/2022   10:42:15   (   0.01,-137.20) (  -0.78,-133.74)  394.35                80
 06/08/2022   23:07:21   (  -0.02,-137.19) (  -0.45,-139.14)  223.02                80
 06/09/2022   22:46:17   (  -0.01,-137.18) (   0.55,-134.69)  284.32                80
 06/11/2022   11:11:16   (   0.02,-137.18) (   0.66,-140.07)  329.71                80
 06/12/2022   10:50:11   (   0.01,-137.16) (  -0.34,-135.61)  176.93                80
 06/13/2022   23:15:18   (  -0.01,-137.14) (  -0.89,-141.02)  442.45                80
 06/14/2022   22:54:13   (  -0.00,-137.12) (   0.11,-136.56)   63.58                80
 06/17/2022   11:00:48   (  -0.00,-137.08) (   0.09,-137.49)   46.62                80
 06/18/2022   10:39:44   (  -0.00,-137.06) (  -0.91,-133.03)  459.13                80
 06/19/2022   23:04:50   (   0.00,-137.02) (  -0.31,-138.44)  161.16                80
 06/20/2022   22:43:45   (   0.00,-137.00) (   0.70,-133.98)  344.65                80