Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 3 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 03/22/2023   10:51:28   (   0.14,-127.86) (   1.06,-131.93)  464.70                80
 03/23/2023   10:30:25   (   0.14,-127.90) (   0.07,-127.48)   46.82                80
 03/25/2023   22:34:34   (  -0.14,-128.02) (  -0.25,-128.46)   50.16                80
 03/26/2023   22:18:53   (  -0.15,-128.05) (   0.80,-124.02)  461.05                80
 03/28/2023   10:38:34   (   0.14,-128.07) (   0.44,-129.39)  150.89                80
 03/29/2023   10:20:11   (   0.15,-128.10) (  -0.55,-124.94)  360.00                80
 03/30/2023   22:42:42   (  -0.15,-128.18) (  -0.66,-130.36)  249.37                80
 03/31/2023   22:26:59   (  -0.15,-128.21) (   0.34,-125.91)  261.54                80
 04/02/2023   10:46:41   (   0.15,-128.22) (   0.81,-131.30)  350.59                80
 04/03/2023   10:30:58   (   0.15,-128.25) (  -0.13,-126.84)  160.12                80