Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 1 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 01/10/2023   10:52:12   (  -0.00,-137.32) (  -0.78,-133.96)  383.27                80
 01/11/2023   23:14:47   (   0.00,-137.31) (  -0.47,-139.40)  237.82                80
 01/12/2023   22:59:07   (   0.00,-137.30) (   0.54,-134.96)  267.49                80
 01/14/2023   11:21:32   (  -0.00,-137.29) (   0.69,-140.36)  349.46                80
 01/15/2023   11:00:33   (  -0.00,-137.28) (  -0.32,-135.92)  155.28                80
 01/16/2023   23:23:07   (   0.01,-137.26) (  -0.91,-141.35)  467.34                80
 01/17/2023   23:07:28   (   0.01,-137.24) (   0.10,-136.92)   36.84                80
 01/20/2023   11:11:34   (  -0.02,-137.19) (   0.11,-137.88)   78.68                80
 01/21/2023   10:50:33   (  -0.02,-137.16) (  -0.85,-133.43)  424.70                80
 01/22/2023   23:13:07   (   0.02,-137.12) (  -0.37,-138.87)  199.62                80