Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 12 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/23/2022   11:24:45   (  -0.01,-137.34) (   0.90,-141.39)  461.42                80
 12/24/2022   11:03:45   (  -0.01,-137.33) (  -0.09,-136.95)   43.90                80
 12/26/2022   23:08:01   (  -0.00,-137.32) (  -0.14,-137.95)   72.15                80
 12/27/2022   22:52:22   (  -0.00,-137.31) (   0.85,-133.51)  433.06                80
 12/29/2022   11:12:07   (   0.01,-137.30) (   0.38,-138.91)  183.89                80
 12/30/2022   10:56:28   (   0.01,-137.29) (  -0.62,-134.47)  321.19                80
 12/31/2022   23:16:23   (  -0.00,-137.28) (  -0.60,-139.91)  300.60                80
 01/01/2023   23:00:43   (  -0.00,-137.26) (   0.41,-135.48)  204.13                80
 01/03/2023   11:20:29   (   0.00,-137.24) (   0.83,-140.87)  413.87                80
 01/04/2023   11:04:49   (   0.00,-137.23) (  -0.18,-136.44)   90.39                80