Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2025 5 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/20/2025   10:42:15   (   0.07,  61.63) (   0.91,  65.31)  419.37                80
 05/21/2025   23:01:15   (  -0.10,  61.64) (   0.23,  60.11)  173.98                80
 05/22/2025   22:45:06   (  -0.08,  61.62) (  -0.79,  64.68)  348.70                80
 05/24/2025   11:04:15   (   0.11,  61.58) (  -0.40,  59.45)  243.58                80
 05/25/2025   10:48:07   (   0.10,  61.57) (   0.67,  64.01)  278.59                80
 05/26/2025   23:07:06   (  -0.13,  61.59) (   0.52,  58.82)  316.18                80
 05/27/2025   22:50:57   (  -0.13,  61.58) (  -0.56,  63.38)  205.57                80
 05/29/2025   11:10:07   (   0.15,  61.55) (  -0.62,  58.15)  387.83                80
 05/30/2025   10:53:57   (   0.14,  61.55) (   0.41,  62.72)  133.83                80
 05/31/2025   23:12:57   (  -0.17,  61.57) (   0.73,  57.52)  461.27                80
 06/01/2025   22:56:48   (  -0.16,  61.56) (  -0.30,  62.09)   60.57                80