Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2025 7 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/18/2025   23:11:28   (  -0.43,  61.33) (  -0.04,  59.72)  184.91                80
 07/19/2025   22:49:58   (  -0.43,  61.34) (  -1.10,  64.28)  335.39                80
 07/21/2025   11:11:46   (   0.44,  61.31) (  -0.07,  59.06)  256.83                80
 07/22/2025   10:55:36   (   0.44,  61.32) (   1.00,  63.62)  263.50                80
 07/23/2025   23:17:15   (  -0.45,  61.38) (   0.19,  58.44)  335.21                80
 07/24/2025   22:55:45   (  -0.45,  61.40) (  -0.82,  63.02)  184.64                80
 07/26/2025   11:17:32   (   0.46,  61.37) (  -0.34,  57.79)  408.38                80
 07/27/2025   11:01:22   (   0.46,  61.38) (   0.67,  62.37)  112.11                80
 07/28/2025   23:23:01   (  -0.46,  61.43) (   0.51,  57.18)  485.27                80
 07/29/2025   23:01:32   (  -0.46,  61.45) (  -0.56,  61.74)   34.68                80
 08/01/2025   11:04:28   (   0.47,  61.45) (   0.36,  61.11)   39.47                80