Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 5 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/17/2023   12:03:07   (   0.04,-148.92) (   0.10,-149.23)   34.47                80
 05/20/2023   00:04:36   (  -0.02,-150.04) (  -0.07,-150.23)   22.82                80
 05/22/2023   12:11:16   (   0.01,-151.17) (   0.01,-151.21)    4.04                80
 05/25/2023   00:12:44   (   0.00,-152.26) (  -0.00,-152.21)    6.11                80
 05/27/2023   12:19:23   (  -0.01,-153.38) (  -0.07,-153.18)   23.18                80
 05/30/2023   00:23:31   (   0.03,-154.46) (   0.10,-154.19)   31.60                80