Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2025 5 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/20/2025   09:48:39   (   0.00,-104.41) (  -0.56,-101.91)  285.09                80
 05/21/2025   22:10:28   (  -0.00,-104.40) (  -0.63,-107.14)  311.89                80
 05/22/2025   21:54:20   (  -0.00,-104.41) (   0.44,-102.58)  209.36                80
 05/24/2025   10:15:59   (   0.00,-104.42) (   0.75,-107.76)  381.51                80
 05/25/2025   09:54:30   (  -0.00,-104.41) (  -0.26,-103.19)  139.06                80
 05/26/2025   22:16:19   (   0.00,-104.40) (  -0.92,-108.42)  459.18                80
 05/27/2025   22:00:10   (  -0.00,-104.40) (   0.10,-103.85)   61.82                80
 05/30/2025   10:03:00   (   0.02,-104.41) (   0.01,-104.48)    8.19                80
 06/01/2025   22:03:19   (  -0.02,-104.39) (  -0.21,-105.13)   84.95                80