Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 5 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/12/2022   10:20:14   (   0.09,-127.82) (   0.20,-128.33)   56.96                80
 05/13/2022   10:04:30   (   0.10,-127.79) (  -0.78,-123.87)  447.27                80
 05/14/2022   22:24:18   (  -0.08,-127.75) (  -0.41,-129.29)  174.86                80
 05/15/2022   22:08:34   (  -0.08,-127.71) (   0.57,-124.83)  329.20                80
 05/17/2022   10:28:13   (   0.06,-127.64) (   0.63,-130.21)  292.50                80
 05/18/2022   10:12:28   (   0.07,-127.60) (  -0.34,-125.75)  210.66                80
 05/19/2022   22:32:16   (  -0.05,-127.53) (  -0.88,-131.16)  413.73                80
 05/20/2022   22:16:31   (  -0.06,-127.49) (   0.10,-126.70)   89.64                80
 05/23/2022   10:17:46   (   0.05,-127.37) (   0.13,-127.62)   29.06                80
 05/24/2022   10:02:02   (   0.07,-127.33) (  -0.85,-123.16)  474.07                80