Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 12 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)
 12/10/2023   21:59:09   (  -0.04,  61.17) (  -0.70,  64.14)  338.81                80
 12/12/2023   10:21:33   (   0.06,  61.27) (  -0.50,  58.76)  286.06                80
 12/13/2023   10:05:45   (   0.04,  61.27) (   0.48,  63.23)  223.64                80
 12/14/2023   22:27:59   (  -0.06,  61.19) (   0.71,  57.89)  377.17                80
 12/15/2023   22:06:52   (  -0.05,  61.20) (  -0.28,  62.36)  131.57                80
 12/17/2023   10:29:15   (   0.07,  61.32) (  -0.92,  56.98)  495.68                80
 12/18/2023   10:13:28   (   0.06,  61.33) (   0.07,  61.46)   13.62                80
 12/20/2023   22:17:15   (  -0.07,  61.26) (   0.12,  60.58)   77.89                80
 12/21/2023   21:56:08   (  -0.05,  61.27) (  -0.94,  65.05)  430.68                80
 12/23/2023   10:18:30   (   0.07,  61.41) (  -0.32,  59.67)  197.45                80