Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2025 9 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)
 09/18/2025   11:00:10   (   0.41,  61.36) (   0.88,  63.42)  234.98                80
 09/19/2025   23:24:27   (  -0.35,  61.34) (   0.33,  58.24)  353.24                80
 09/20/2025   23:02:58   (  -0.39,  61.35) (  -0.75,  62.81)  167.19                80
 09/22/2025   11:27:24   (   0.33,  61.36) (  -0.52,  57.60)  428.22                80
 09/23/2025   11:05:55   (   0.36,  61.36) (   0.56,  62.17)   93.01                80
 09/24/2025   23:30:11   (  -0.30,  61.33) (   0.71,  57.01)  494.10                80
 09/25/2025   23:08:41   (  -0.33,  61.34) (  -0.38,  61.57)   25.74                80
 09/28/2025   11:14:18   (   0.30,  61.38) (   0.21,  60.93)   51.51                80
 09/29/2025   10:52:49   (   0.34,  61.39) (   1.30,  65.49)  468.68                80
 09/30/2025   23:17:05   (  -0.27,  61.37) (  -0.03,  60.33)  119.18                80
 10/01/2025   22:55:36   (  -0.32,  61.39) (  -1.12,  64.89)  399.73                80