Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 7 14.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/14/2022   11:03:36   (   0.04,-137.28) (   0.21,-137.91)   72.74                80
 07/15/2022   10:42:32   (   0.04,-137.28) (  -0.81,-133.46)  435.51                80
 07/16/2022   23:07:38   (  -0.05,-137.27) (  -0.43,-138.86)  181.95                80
 07/17/2022   22:46:34   (  -0.05,-137.27) (   0.59,-134.41)  326.38                80
 07/19/2022   11:11:32   (   0.05,-137.28) (   0.60,-139.79)  284.98                80
 07/20/2022   10:50:28   (   0.04,-137.28) (  -0.42,-135.33)  223.04                80
 07/21/2022   23:12:54   (  -0.04,-137.27) (  -0.82,-140.74)  395.38                80
 07/22/2022   22:57:09   (  -0.04,-137.26) (   0.20,-136.28)  112.23                80
 07/25/2022   10:58:22   (   0.02,-137.26) (   0.00,-137.20)    6.76                80
 07/27/2022   23:02:24   (   0.00,-137.21) (  -0.22,-138.15)  106.89                80