Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 12 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/15/2022   10:28:04   (  -0.00,-127.48) (   0.16,-128.09)   70.78                80
 12/16/2022   10:12:26   (   0.00,-127.44) (  -0.88,-123.67)  430.65                80
 12/17/2022   22:32:21   (   0.01,-127.31) (  -0.37,-129.10)  204.44                80
 12/18/2022   22:16:41   (   0.01,-127.26) (   0.61,-124.66)  296.73                80
 12/20/2022   10:36:27   (  -0.02,-127.26) (   0.65,-130.06)  320.16                80
 12/21/2022   10:20:47   (  -0.01,-127.21) (  -0.34,-125.62)  180.44                80
 12/22/2022   22:40:43   (   0.01,-127.06) (  -0.90,-131.05)  456.23                80
 12/23/2022   22:25:03   (   0.01,-127.00) (   0.08,-126.61)   43.81                80
 12/26/2022   10:26:30   (  -0.01,-126.92) (   0.13,-127.58)   74.71                80