Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2025 6 30.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/01/2025   10:51:16   (   0.33,  61.24) (   1.00,  64.15)  332.02                80
 07/02/2025   23:10:15   (  -0.35,  61.29) (   0.20,  58.96)  265.62                80
 07/03/2025   22:54:05   (  -0.35,  61.29) (  -0.85,  63.53)  255.57                80
 07/05/2025   11:13:14   (   0.37,  61.25) (  -0.29,  58.30)  336.00                80
 07/06/2025   10:57:03   (   0.36,  61.25) (   0.71,  62.88)  185.03                80
 07/07/2025   23:16:04   (  -0.38,  61.31) (   0.43,  57.68)  413.32                80
 07/08/2025   22:59:54   (  -0.38,  61.32) (  -0.62,  62.25)  107.00                80
 07/10/2025   11:19:01   (   0.40,  61.29) (  -0.56,  57.03)  486.27                80
 07/11/2025   11:02:51   (   0.40,  61.30) (   0.44,  61.60)   34.17                80
 07/13/2025   23:03:01   (  -0.41,  61.37) (  -0.30,  60.99)   44.74                80