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

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/12/2022   22:26:37   (  -0.00,-127.52) (   0.08,-127.13)   43.71                80
 12/15/2022   10:28:04   (  -0.00,-127.48) (   0.15,-128.10)   70.85                80
 12/16/2022   10:12:25   (   0.00,-127.44) (  -0.83,-123.66)  430.55                80
 12/17/2022   22:32:20   (   0.01,-127.31) (  -0.42,-129.09)  204.52                80
 12/18/2022   22:16:41   (   0.01,-127.26) (   0.57,-124.65)  296.66                80
 12/20/2022   10:36:27   (  -0.02,-127.26) (   0.64,-130.06)  320.25                80
 12/21/2022   10:20:47   (  -0.01,-127.20) (  -0.35,-125.62)  180.32                80
 12/22/2022   22:40:43   (   0.02,-127.06) (  -0.89,-131.06)  456.30                80
 12/23/2022   22:25:03   (   0.01,-127.00) (   0.10,-126.62)   43.73                80