Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2025 1 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 01/12/2025   10:44:48   (   0.03,  61.51) (  -0.10,  60.95)   63.58                80
 01/13/2025   10:28:44   (   0.02,  61.52) (   0.92,  65.50)  454.25                80
 01/14/2025   22:50:31   (  -0.02,  61.39) (   0.26,  60.27)  128.30                80
 01/15/2025   22:29:08   (  -0.02,  61.40) (  -0.82,  64.81)  389.22                80
 01/17/2025   10:51:03   (   0.02,  61.55) (  -0.46,  59.56)  227.64                80
 01/18/2025   10:35:00   (   0.02,  61.56) (   0.63,  64.10)  290.15                80
 01/19/2025   22:56:47   (  -0.02,  61.43) (   0.54,  58.87)  292.00                80
 01/20/2025   22:35:22   (  -0.02,  61.45) (  -0.49,  63.42)  225.43                80
 01/22/2025   10:57:18   (   0.02,  61.61) (  -0.77,  58.17)  392.12                80
 01/23/2025   10:41:13   (   0.01,  61.62) (   0.26,  62.72)  125.24                80
 01/24/2025   23:00:21   (   0.00,  61.50) (   0.90,  57.49)  457.37                80
 01/25/2025   22:41:36   (   0.01,  61.52) (  -0.14,  62.04)   59.36                80