Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2025 7 10.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/11/2025   11:02:51   (   0.40,  61.27) (   0.47,  61.60)   38.02                80
 07/13/2025   23:05:41   (  -0.41,  61.33) (  -0.33,  60.98)   39.24                80
 07/14/2025   22:46:52   (  -0.40,  61.34) (  -1.39,  65.55)  481.08                80
 07/16/2025   11:05:59   (   0.42,  61.31) (   0.21,  60.32)  112.10                80
 07/17/2025   10:49:49   (   0.41,  61.32) (   1.22,  64.90)  408.30                80
 07/18/2025   23:11:28   (  -0.43,  61.38) (  -0.02,  59.72)  189.97                80
 07/19/2025   22:49:58   (  -0.42,  61.39) (  -1.08,  64.28)  329.45                80
 07/21/2025   11:11:46   (   0.44,  61.39) (  -0.09,  59.06)  265.80                80
 07/22/2025   10:55:36   (   0.44,  61.41) (   0.98,  63.62)  253.60                80
 07/23/2025   23:17:15   (  -0.45,  61.47) (   0.22,  58.44)  344.92                80