Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 3 30.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 03/30/2022   22:52:50   (   0.03,-137.21) (   0.10,-136.89)   35.85                80
 04/02/2022   10:59:26   (  -0.03,-137.21) (   0.12,-137.82)   70.49                80
 04/03/2022   10:38:22   (  -0.03,-137.20) (  -0.87,-133.37)  436.62                80
 04/04/2022   23:03:32   (   0.03,-137.20) (  -0.35,-138.79)  182.04                80
 04/05/2022   22:42:28   (   0.03,-137.19) (   0.65,-134.34)  324.72                80
 04/07/2022   11:07:28   (  -0.02,-137.18) (   0.57,-139.72)  290.27                80
 04/08/2022   10:46:24   (  -0.02,-137.17) (  -0.43,-135.27)  216.03                80
 04/09/2022   23:08:53   (   0.02,-137.15) (  -0.79,-140.69)  403.90                80
 04/10/2022   22:53:10   (   0.01,-137.13) (   0.21,-136.24)  102.14                80