Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 12 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)
 12/30/2022   10:53:49   (  -0.01,-137.34) (  -0.66,-134.48)  326.01                80
 12/31/2022   23:19:04   (  -0.00,-137.33) (  -0.57,-139.92)  294.71                80
 01/01/2023   23:00:43   (  -0.02,-137.33) (   0.37,-135.47)  211.24                80
 01/03/2023   11:23:10   (   0.02,-137.32) (   0.81,-140.88)  405.07                80
 01/04/2023   11:02:10   (   0.02,-137.31) (  -0.19,-136.44)   99.97                80
 01/06/2023   23:06:25   (  -0.02,-137.28) (  -0.07,-137.43)   17.76                80
 01/07/2023   22:50:46   (  -0.02,-137.27) (   0.93,-132.99)  487.02                80
 01/09/2023   11:13:12   (   0.01,-137.25) (   0.25,-138.40)  130.59                80
 01/10/2023   10:52:12   (   0.01,-137.24) (  -0.75,-133.96)  373.68                80
 01/11/2023   23:17:27   (  -0.01,-137.21) (  -0.50,-139.40)  249.55                80
 01/12/2023   22:56:27   (   0.00,-137.19) (   0.51,-134.96)  254.54                80