Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2025 6 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)
 06/21/2025   23:17:27   (  -0.30,  61.31) (   0.71,  56.95)  497.30                80
 06/22/2025   23:01:18   (  -0.29,  61.31) (  -0.33,  61.52)   24.16                80
 06/25/2025   11:01:37   (   0.31,  61.26) (   0.21,  60.86)   45.78                80
 06/26/2025   10:45:27   (   0.30,  61.26) (   1.26,  65.43)  475.54                80
 06/27/2025   23:04:27   (  -0.33,  61.31) (  -0.07,  60.24)  122.34                80
 06/28/2025   22:48:17   (  -0.32,  61.31) (  -1.12,  64.81)  398.93                80
 06/30/2025   11:07:25   (   0.34,  61.26) (  -0.03,  59.58)  192.32                80
 07/01/2025   10:51:15   (   0.33,  61.26) (   0.96,  64.16)  329.21                80
 07/02/2025   23:10:15   (  -0.35,  61.31) (   0.18,  58.96)  268.28                80
 07/03/2025   22:54:06   (  -0.34,  61.31) (  -0.88,  63.52)  252.75                80