Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2025 9 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 09/23/2025   21:17:22   (   0.18, -89.52) (   0.06, -89.94)   48.48                80
 09/24/2025   20:55:53   (   0.19, -89.53) (   1.15, -85.38)  473.77                80
 09/26/2025   09:20:10   (  -0.17, -89.53) (   0.06, -90.55)  116.78                80
 09/27/2025   08:58:40   (  -0.18, -89.53) (  -0.97, -85.98)  404.94                80
 09/28/2025   21:23:07   (   0.16, -89.55) (  -0.22, -91.19)  187.83                80
 09/29/2025   21:01:37   (   0.17, -89.56) (   0.81, -86.62)  334.41                80
 10/01/2025   09:25:54   (  -0.15, -89.56) (   0.39, -91.79)  255.23                80
 10/02/2025   09:04:25   (  -0.17, -89.57) (  -0.71, -87.23)  266.70                80
 10/03/2025   21:28:51   (   0.14, -89.59) (  -0.53, -92.44)  326.01                80
 10/04/2025   21:07:21   (   0.16, -89.60) (   0.57, -87.88)  196.74                80