Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 4 12.  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   10:54:26   (  -0.03,-137.19) (  -0.05,-137.17)    3.94                80
 04/15/2022   23:01:11   (   0.02,-137.16) (  -0.20,-138.13)  109.98                80
 04/16/2022   22:40:07   (   0.03,-137.15) (   0.81,-133.68)  396.38                80
 04/18/2022   11:05:06   (  -0.02,-137.14) (   0.39,-139.06)  218.43                80
 04/19/2022   10:44:02   (  -0.03,-137.12) (  -0.57,-134.60)  287.29                80
 04/20/2022   23:09:11   (   0.02,-137.09) (  -0.63,-140.02)  334.56                80
 04/21/2022   22:50:47   (   0.02,-137.06) (   0.33,-135.56)  170.70                80
 04/23/2022   11:13:06   (  -0.01,-137.03) (   0.86,-140.94)  445.63                80
 04/24/2022   10:52:03   (  -0.01,-137.01) (  -0.15,-136.49)   59.42                80