Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 10 5.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 10/05/2023   07:53:24   (  -0.25,  92.42) (   0.24,  94.56)  244.39                80
 10/06/2023   20:18:28   (   0.22,  90.80) (   0.59,  89.11)  192.79                80
 10/07/2023   19:57:27   (   0.24,  89.75) (  -0.61,  93.53)  430.49                80
 10/09/2023   08:22:39   (  -0.21,  88.11) (  -0.23,  88.05)    7.75                80
 10/10/2023   20:45:03   (   0.18,  86.48) (   1.06,  82.60)  442.35                80
 10/11/2023   20:24:02   (   0.21,  85.42) (  -0.16,  87.01)  181.74                80
 10/13/2023   08:49:14   (  -0.18,  83.79) (  -0.67,  81.53)  256.85                80
 10/14/2023   08:28:13   (  -0.20,  82.72) (   0.56,  85.95)  368.89                80
 10/15/2023   20:53:16   (   0.18,  81.07) (   0.32,  80.51)   64.60                80
 10/18/2023   08:54:46   (  -0.18,  78.39) (   0.06,  79.45)  120.92                80