Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2025 7 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/21/2025   21:20:32   (   0.10, -89.52) (  -0.70, -93.02)  399.03                80
 07/22/2025   21:04:22   (   0.10, -89.52) (   0.37, -88.46)  122.34                80
 07/24/2025   09:26:02   (  -0.11, -89.49) (   0.82, -93.64)  473.70                80
 07/25/2025   09:04:31   (  -0.11, -89.49) (  -0.19, -89.07)   48.11                80
 07/27/2025   21:07:29   (   0.12, -89.55) (   0.10, -89.73)   19.78                80
 07/30/2025   09:12:58   (  -0.12, -89.54) (   0.07, -90.34)   91.26                80
 07/31/2025   08:53:19   (  -0.12, -89.55) (  -1.00, -85.77)  431.45                31
 08/01/2025   21:13:15   (   0.13, -89.61) (  -0.21, -90.99)  157.77                80
 08/02/2025   20:57:05   (   0.13, -89.62) (   0.87, -86.42)  365.04                80