Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 12 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/18/2022   11:16:22   (   0.02,-137.33) (   0.48,-139.42)  237.24                80
 12/19/2022   10:55:22   (   0.02,-137.33) (  -0.50,-134.98)  268.20                80
 12/20/2022   23:17:57   (  -0.02,-137.32) (  -0.73,-140.41)  353.64                80
 12/21/2022   23:02:18   (  -0.02,-137.31) (   0.25,-135.97)  151.24                80
 12/23/2022   11:24:44   (   0.02,-137.29) (   0.94,-141.38)  466.29                80
 12/24/2022   11:03:45   (   0.02,-137.28) (  -0.05,-136.94)   37.88                80
 12/26/2022   23:10:41   (  -0.01,-137.23) (  -0.18,-137.94)   81.81                80
 12/27/2022   22:49:41   (  -0.00,-137.21) (   0.81,-133.51)  422.10                80
 12/29/2022   11:14:47   (   0.00,-137.19) (   0.37,-138.91)  196.16                80
 12/30/2022   10:53:48   (  -0.00,-137.17) (  -0.63,-134.48)  307.68                80