Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 12 18.  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   (   0.01,-137.34) (   0.48,-139.42)  237.17                80
 12/19/2022   10:55:22   (   0.01,-137.33) (  -0.50,-134.98)  268.47                80
 12/20/2022   23:17:58   (  -0.01,-137.32) (  -0.68,-140.43)  353.18                80
 12/21/2022   23:02:19   (  -0.00,-137.31) (   0.31,-135.99)  151.82                80
 12/23/2022   11:24:44   (   0.00,-137.30) (   0.94,-141.38)  465.56                80
 12/24/2022   11:03:45   (  -0.00,-137.29) (  -0.05,-136.94)   38.81                80
 12/26/2022   23:08:02   (   0.02,-137.24) (  -0.12,-137.96)   80.69                80
 12/27/2022   22:52:22   (   0.02,-137.23) (   0.87,-133.52)  423.54                80
 12/29/2022   11:12:07   (  -0.02,-137.21) (   0.37,-138.91)  194.47                80
 12/30/2022   10:56:28   (  -0.02,-137.19) (  -0.63,-134.48)  309.63                80
 12/31/2022   23:16:23   (   0.02,-137.16) (  -0.59,-139.92)  314.20                80