Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 9 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 09/25/2023   21:12:07   (   0.02,-104.67) (   0.07,-104.57)   12.48                80
 09/28/2023   09:16:00   (  -0.01,-104.71) (   0.18,-105.47)   86.50                80
 09/29/2023   08:54:55   (  -0.01,-104.72) (  -0.83,-101.01)  422.43                80
 09/30/2023   21:17:22   (   0.01,-104.68) (  -0.36,-106.41)  196.68                80
 10/01/2023   21:01:38   (   0.01,-104.69) (   0.66,-101.95)  312.44                80
 10/03/2023   09:23:56   (  -0.02,-104.73) (   0.54,-107.32)  294.87                80
 10/04/2023   09:02:51   (   0.00,-104.73) (  -0.42,-102.85)  214.54                80
 10/05/2023   21:25:17   (  -0.01,-104.69) (  -0.80,-108.25)  404.82                80
 10/06/2023   21:09:33   (  -0.00,-104.70) (   0.23,-103.79)  104.22                80