Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 4 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)
 04/13/2022   10:54:25   (  -0.03,-137.19) (  -0.05,-137.17)    3.59                80
 04/15/2022   23:01:10   (   0.02,-137.16) (  -0.19,-138.13)  110.07                80
 04/16/2022   22:40:07   (   0.03,-137.15) (   0.83,-133.68)  396.32                80
 04/18/2022   11:05:05   (  -0.02,-137.14) (   0.41,-139.05)  218.26                80
 04/19/2022   10:44:02   (  -0.03,-137.12) (  -0.61,-134.60)  287.49                80
 04/20/2022   23:09:10   (   0.02,-137.08) (  -0.62,-140.02)  334.40                80
 04/21/2022   22:48:05   (   0.02,-137.06) (   0.35,-135.56)  170.91                80
 04/23/2022   11:13:04   (  -0.01,-137.03) (   0.87,-140.93)  445.12                80
 04/24/2022   10:52:00   (  -0.01,-137.01) (  -0.16,-136.49)   60.07                80