Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 6 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 06/30/2023   21:09:51   (  -0.00,-104.72) (  -0.25,-105.92)  136.34                80
 07/01/2023   20:54:07   (  -0.01,-104.71) (   0.71,-101.45)  371.25                80
 07/03/2023   09:16:30   (   0.01,-104.73) (   0.46,-106.84)  239.92                80
 07/04/2023   08:55:26   (   0.02,-104.73) (  -0.50,-102.38)  267.17                80
 07/05/2023   21:17:55   (  -0.02,-104.69) (  -0.71,-107.79)  353.52                80
 07/06/2023   21:02:12   (  -0.02,-104.69) (   0.26,-103.33)  154.04                80
 07/08/2023   09:24:34   (   0.02,-104.72) (   0.91,-108.72)  456.17                80
 07/09/2023   09:03:31   (   0.02,-104.71) (  -0.06,-104.26)   51.35                80
 07/11/2023   21:07:37   (  -0.03,-104.68) (  -0.17,-105.21)   61.49                80
 07/12/2023   20:51:54   (  -0.03,-104.68) (   0.86,-100.76)  446.41                80