Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 5 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/27/2023   12:16:43   (  -0.01,-153.35) (  -0.05,-153.18)   19.92                80
 05/30/2023   00:20:51   (   0.02,-154.42) (   0.06,-154.18)   27.68                80
 06/01/2023   12:27:31   (  -0.04,-155.51) (  -0.13,-155.15)   41.32                80
 06/04/2023   00:31:39   (   0.06,-156.55) (   0.17,-156.15)   45.85                80
 06/05/2023   12:51:20   (  -0.10,-157.20) (   0.91,-161.55)  497.20                80
 06/06/2023   12:32:58   (  -0.08,-157.61) (  -0.18,-157.12)   55.88                80
 06/08/2023   00:55:28   (   0.11,-158.21) (  -0.86,-162.56)  495.12                80
 06/09/2023   00:37:05   (   0.09,-158.62) (   0.19,-158.11)   57.82                80