Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 1 31.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 02/01/2023   10:48:15   (   0.04,-128.29) (   1.00,-132.43)  472.96                80
 02/02/2023   10:32:35   (   0.05,-128.29) (  -0.05,-128.00)   33.85                80
 02/04/2023   22:36:47   (  -0.05,-128.26) (  -0.22,-128.98)   81.98                80
 02/05/2023   22:15:47   (  -0.06,-128.26) (   0.78,-124.53)  424.18                80
 02/07/2023   10:38:12   (   0.06,-128.28) (   0.42,-129.94)  188.54                80
 02/08/2023   10:22:31   (   0.06,-128.28) (  -0.58,-125.49)  317.78                80
 02/09/2023   22:45:04   (  -0.06,-128.25) (  -0.66,-130.92)  304.32                80
 02/10/2023   22:24:03   (  -0.06,-128.24) (   0.35,-126.48)  201.45                80
 02/12/2023   10:46:27   (   0.06,-128.25) (   0.90,-131.87)  412.75                80
 02/13/2023   10:30:47   (   0.06,-128.24) (  -0.11,-127.42)   92.89                80