Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2026 9 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 09/21/2026   11:38:33   (   0.63,  63.36) (   1.07,  65.20)  209.39                80
 09/23/2026   00:02:38   (  -0.45,  63.25) (   0.24,  60.10)  358.75                80
 09/23/2026   23:41:03   (  -0.56,  63.25) (  -0.89,  64.68)  163.18                80
 09/25/2026   12:05:16   (   0.37,  63.37) (  -0.50,  59.57)  434.52                80
 09/26/2026   11:43:40   (   0.48,  63.38) (   0.64,  64.15)   87.40                80
 09/28/2026   00:07:46   (  -0.28,  63.27) (   0.66,  59.05)  480.76                80
 09/28/2026   23:46:10   (  -0.40,  63.28) (  -0.49,  63.63)   40.61                80
 10/01/2026   11:51:27   (   0.29,  63.43) (   0.19,  63.11)   36.96                80
 10/02/2026   11:29:53   (   0.41,  63.44) (   1.40,  67.68)  483.82                80
 10/03/2026   23:53:57   (  -0.21,  63.35) (  -0.07,  62.59)   85.79                80