Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2025 6 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 06/21/2025   23:17:28   (  -0.30,  61.31) (   0.70,  56.95)  497.31                80
 06/22/2025   23:01:18   (  -0.29,  61.31) (  -0.35,  61.52)   24.19                80
 06/25/2025   11:01:37   (   0.31,  61.26) (   0.22,  60.86)   45.53                80
 06/26/2025   10:45:27   (   0.30,  61.26) (   1.27,  65.42)  475.82                80
 06/27/2025   23:04:27   (  -0.33,  61.31) (  -0.08,  60.24)  122.18                80
 06/28/2025   22:48:17   (  -0.32,  61.31) (  -1.13,  64.80)  399.10                80
 06/30/2025   11:07:26   (   0.34,  61.26) (  -0.02,  59.57)  191.97                80
 07/01/2025   10:51:15   (   0.33,  61.26) (   0.97,  64.15)  329.59                80
 07/02/2025   23:10:15   (  -0.35,  61.31) (   0.17,  58.95)  268.01                80
 07/03/2025   22:54:05   (  -0.34,  61.31) (  -0.83,  63.53)  253.05                80
 07/05/2025   11:13:13   (   0.37,  61.27) (  -0.31,  58.30)  339.00                80