Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 12 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/20/2022   23:17:58   (  -0.02,-137.34) (  -0.69,-140.42)  350.61                80
 12/21/2022   23:02:19   (  -0.02,-137.34) (   0.30,-135.98)  155.21                80
 12/23/2022   11:24:44   (   0.02,-137.34) (   0.95,-141.38)  461.20                80
 12/24/2022   11:03:45   (   0.02,-137.33) (  -0.04,-136.94)   44.05                80
 12/26/2022   23:10:42   (  -0.01,-137.31) (  -0.13,-137.95)   72.86                80
 12/27/2022   22:49:42   (  -0.01,-137.30) (   0.86,-133.52)  432.06                80
 12/29/2022   11:14:47   (   0.01,-137.29) (   0.38,-138.91)  185.09                80
 12/30/2022   10:53:48   (   0.00,-137.28) (  -0.62,-134.47)  319.71                80
 12/31/2022   23:19:03   (  -0.01,-137.26) (  -0.60,-139.92)  302.20                80
 01/01/2023   22:58:04   (  -0.01,-137.25) (   0.40,-135.48)  202.40                80