Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 5 8.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/10/2022   11:00:18   (  -0.01,-137.19) (   0.12,-137.70)   59.28                80
 05/11/2022   10:39:14   (  -0.01,-137.18) (  -0.92,-133.26)  448.05                80
 05/12/2022   23:04:21   (   0.01,-137.17) (  -0.33,-138.67)  170.94                80
 05/13/2022   22:43:17   (   0.01,-137.16) (   0.65,-134.21)  336.01                80
 05/15/2022   11:08:16   (  -0.01,-137.15) (   0.55,-139.59)  277.95                80
 05/16/2022   10:47:13   (  -0.01,-137.14) (  -0.49,-135.14)  228.35                80
 05/17/2022   23:12:19   (   0.01,-137.10) (  -0.79,-140.54)  392.43                80
 05/18/2022   22:51:16   (   0.01,-137.08) (   0.25,-136.09)  113.33                80
 05/21/2022   10:55:11   (  -0.01,-137.04) (  -0.03,-137.02)    3.45                80