Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 5 21.  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   12:08:35   (   0.01,-151.16) (   0.04,-151.20)    5.41                80
 05/25/2023   00:15:24   (   0.01,-152.25) (   0.02,-152.21)    4.19                80
 05/27/2023   12:19:24   (  -0.01,-153.36) (  -0.08,-153.18)   20.88                80
 05/30/2023   00:23:32   (   0.03,-154.43) (   0.10,-154.18)   28.60                80
 06/01/2023   12:24:51   (  -0.04,-155.53) (  -0.11,-155.15)   42.88                80
 06/04/2023   00:31:38   (   0.06,-156.57) (   0.16,-156.15)   47.61                80