Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 5 10.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/10/2023   23:29:56   (  -0.08,-145.92) (   0.83,-141.83)  465.80                80
 05/12/2023   11:54:58   (   0.06,-146.64) (   0.20,-147.25)   69.47                80
 05/13/2023   11:33:55   (   0.08,-147.09) (  -0.87,-142.80)  488.15                80
 05/14/2023   23:59:08   (  -0.05,-147.77) (  -0.14,-148.26)   56.06                80
 05/17/2023   12:03:08   (   0.04,-148.93) (   0.10,-149.23)   34.43                80
 05/20/2023   00:04:36   (  -0.02,-150.04) (  -0.08,-150.24)   23.09                80
 05/22/2023   12:08:36   (   0.01,-151.18) (   0.03,-151.21)    4.32                80