Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 5 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/20/2023   00:07:16   (  -0.02,-150.03) (  -0.05,-150.24)   23.09                80
 05/22/2023   12:11:16   (   0.01,-151.16) (  -0.01,-151.21)    5.46                80
 05/25/2023   00:12:44   (   0.00,-152.25) (  -0.00,-152.21)    4.90                80
 05/27/2023   12:16:44   (  -0.01,-153.37) (  -0.05,-153.18)   21.38                80
 05/30/2023   00:20:52   (   0.02,-154.44) (   0.06,-154.18)   29.45                80
 06/01/2023   12:24:51   (  -0.04,-155.54) (  -0.12,-155.15)   43.97                80