Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 5 15.  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,-148.93) (   0.11,-149.23)   34.37                80
 05/20/2023   00:04:36   (  -0.02,-150.04) (  -0.08,-150.23)   22.69                80
 05/22/2023   12:10:00   (   0.01,-151.18) (   0.02,-151.21)    3.74                 4
 05/25/2023   00:12:43   (   0.00,-152.26) (  -0.01,-152.21)    6.75                80
 05/27/2023   12:16:43   (  -0.01,-153.39) (  -0.06,-153.18)   23.60                80