Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 7 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/25/2022   10:58:21   (   0.05,-137.29) (   0.05,-137.18)   12.19                80
 07/27/2022   23:05:03   (  -0.05,-137.28) (  -0.27,-138.13)   97.80                80
 07/28/2022   22:43:58   (  -0.05,-137.28) (   0.76,-133.68)  409.71                80
 07/30/2022   11:08:56   (   0.05,-137.26) (   0.45,-139.05)  204.15                80
 07/31/2022   10:47:51   (   0.05,-137.25) (  -0.58,-134.60)  303.14                80
 08/01/2022   23:10:17   (  -0.05,-137.24) (  -0.66,-140.00)  315.10                80
 08/02/2022   22:54:32   (  -0.04,-137.23) (   0.31,-135.54)  191.92                80
 08/04/2022   11:14:09   (   0.04,-137.20) (   0.89,-140.91)  422.94                80
 08/05/2022   10:58:25   (   0.04,-137.19) (  -0.15,-136.46)   83.51                80