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)
 07/24/2022   11:19:26   (   0.06,-137.29) (   1.03,-141.64)  495.78                80
 07/25/2022   10:58:22   (   0.05,-137.29) (   0.01,-137.19)   12.43                80
 07/27/2022   23:05:04   (  -0.05,-137.29) (  -0.22,-138.14)   97.30                80
 07/28/2022   22:43:58   (  -0.04,-137.28) (   0.75,-133.68)  410.31                80
 07/30/2022   11:08:55   (   0.05,-137.27) (   0.46,-139.05)  203.33                80
 07/31/2022   10:47:51   (   0.05,-137.26) (  -0.57,-134.60)  304.08                80
 08/01/2022   23:10:17   (  -0.04,-137.25) (  -0.67,-140.00)  313.97                80
 08/02/2022   22:54:33   (  -0.04,-137.24) (   0.36,-135.55)  193.18                80
 08/04/2022   11:14:09   (   0.04,-137.22) (   0.89,-140.91)  421.45                80
 08/05/2022   10:58:25   (   0.04,-137.20) (  -0.15,-136.46)   85.11                80