Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 10 4.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 10/04/2023   08:14:25   (  -0.23,  93.48) (  -1.00,  90.15)  379.88                80
 10/05/2023   07:53:23   (  -0.25,  92.42) (   0.21,  94.57)  244.42                80
 10/06/2023   20:18:28   (   0.22,  90.80) (   0.63,  89.12)  192.43                80
 10/07/2023   19:57:27   (   0.24,  89.75) (  -0.64,  93.52)  431.00                80
 10/09/2023   08:22:40   (  -0.21,  88.11) (  -0.21,  88.04)    7.53                80
 10/10/2023   20:45:04   (   0.18,  86.47) (   1.03,  82.59)  441.53                80
 10/11/2023   20:24:02   (   0.21,  85.41) (  -0.18,  87.01)  182.71                80
 10/13/2023   08:49:14   (  -0.18,  83.78) (  -0.70,  81.54)  255.90                80
 10/14/2023   08:28:12   (  -0.20,  82.71) (   0.52,  85.95)  369.93                80
 10/15/2023   20:53:16   (   0.18,  81.06) (   0.30,  80.50)   63.20                80