Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2025 1 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 01/13/2025   10:28:44   (   0.02,  61.52) (   0.90,  65.50)  454.25                80
 01/14/2025   22:50:32   (  -0.02,  61.39) (   0.21,  60.26)  128.38                80
 01/15/2025   22:29:07   (  -0.02,  61.40) (  -0.81,  64.81)  389.09                80
 01/17/2025   10:51:04   (   0.02,  61.56) (  -0.41,  59.55)  227.81                80
 01/18/2025   10:34:59   (   0.02,  61.56) (   0.61,  64.10)  289.91                80
 01/19/2025   22:56:47   (  -0.02,  61.44) (   0.56,  58.87)  292.26                80
 01/20/2025   22:35:22   (  -0.02,  61.45) (  -0.47,  63.42)  225.10                80
 01/22/2025   10:57:17   (   0.02,  61.61) (  -0.79,  58.18)  392.52                80
 01/23/2025   10:41:13   (   0.01,  61.62) (   0.24,  62.72)  124.83                80
 01/24/2025   23:00:20   (   0.01,  61.51) (   0.92,  57.49)  457.82                80
 01/25/2025   22:41:36   (   0.01,  61.53) (  -0.11,  62.04)   58.78                80