Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 1 5.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 01/06/2023   23:06:26   (  -0.01,-137.33) (  -0.02,-137.44)   11.68                80
 01/07/2023   22:50:46   (  -0.01,-137.33) (   0.99,-133.00)  494.18                80
 01/09/2023   11:13:11   (   0.02,-137.33) (   0.24,-138.40)  121.71                80
 01/10/2023   10:52:12   (   0.01,-137.32) (  -0.76,-133.96)  383.65                80
 01/11/2023   23:14:46   (  -0.01,-137.31) (  -0.48,-139.39)  237.91                80
 01/12/2023   22:59:07   (  -0.01,-137.30) (   0.53,-134.96)  267.29                80
 01/14/2023   11:21:32   (   0.01,-137.29) (   0.70,-140.36)  349.27                80
 01/15/2023   11:00:33   (   0.01,-137.28) (  -0.32,-135.92)  155.46                80
 01/16/2023   23:23:07   (  -0.01,-137.25) (  -0.91,-141.36)  467.33                80
 01/17/2023   23:07:26   (  -0.01,-137.23) (   0.05,-136.91)   36.91                80