Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2025 9 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 09/17/2025   21:30:28   (   0.18, -89.51) (  -0.68, -93.26)  428.57                80
 09/18/2025   21:08:58   (   0.19, -89.51) (   0.40, -88.70)   93.40                80
 09/20/2025   09:33:16   (  -0.17, -89.51) (   0.82, -93.87)  497.63                80
 09/21/2025   09:11:46   (  -0.19, -89.52) (  -0.26, -89.31)   24.46                80
 09/23/2025   21:17:23   (   0.18, -89.56) (   0.08, -89.95)   45.00                80
 09/24/2025   20:55:53   (   0.19, -89.57) (   1.16, -85.38)  477.71                80
 09/26/2025   09:20:11   (  -0.17, -89.57) (   0.05, -90.56)  112.19                80
 09/27/2025   08:58:40   (  -0.18, -89.58) (  -0.97, -85.98)  409.99                80
 09/28/2025   21:23:08   (   0.16, -89.61) (  -0.22, -91.20)  181.99                80
 09/29/2025   21:01:38   (   0.17, -89.62) (   0.87, -86.64)  340.72                80