Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 8 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)
 08/10/2023   16:01:14   (   0.43, 150.60) (   0.17, 151.82)  138.78                80
 08/12/2023   04:26:29   (  -0.44, 149.00) (  -1.01, 146.33)  304.25                80
 08/13/2023   04:05:30   (  -0.42, 147.98) (   0.23, 150.73)  313.68                80
 08/14/2023   16:30:34   (   0.43, 146.46) (   0.70, 145.29)  133.73                80
 08/15/2023   16:09:35   (   0.42, 145.45) (  -0.55, 149.70)  484.10                80
 08/17/2023   04:32:09   (  -0.42, 143.84) (  -0.35, 144.21)   41.98                80
 08/18/2023   16:57:14   (   0.43, 142.31) (   1.20, 138.76)  403.49                80
 08/19/2023   16:36:14   (   0.42, 141.29) (   0.02, 143.18)  215.25                80
 08/21/2023   05:01:29   (  -0.42, 139.67) (  -0.85, 137.68)  226.51                80
 08/22/2023   04:40:29   (  -0.42, 138.64) (   0.35, 142.10)  393.22                80
 08/23/2023   17:05:34   (   0.42, 137.10) (   0.50, 136.64)   51.31                80