Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 5 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/22/2023   12:11:16   (   0.01,-151.16) (   0.01,-151.21)    5.04                80
 05/25/2023   00:15:25   (   0.01,-152.25) (   0.04,-152.22)    5.13                80
 05/27/2023   12:16:43   (  -0.01,-153.36) (  -0.04,-153.18)   20.86                80
 05/30/2023   00:20:51   (   0.02,-154.43) (   0.06,-154.18)   28.85                80
 06/01/2023   12:24:51   (  -0.04,-155.53) (  -0.12,-155.15)   43.13                80