Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 8 6.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/06/2022   10:39:21   (   0.41,-128.04) (   1.17,-131.48)  391.91                80
 08/07/2022   10:18:16   (   0.40,-128.05) (   0.14,-127.03)  117.20                80
 08/09/2022   22:22:18   (  -0.40,-128.05) (  -0.37,-127.97)    9.08                80
 08/12/2022   10:28:50   (   0.40,-128.11) (   0.59,-128.88)   88.53                80
 08/13/2022   10:07:46   (   0.39,-128.12) (  -0.44,-124.43)  420.27                80
 08/14/2022   22:30:12   (  -0.40,-128.10) (  -0.82,-129.83)  198.16                80
 08/15/2022   22:14:28   (  -0.40,-128.11) (   0.21,-125.38)  311.41                80
 08/17/2022   10:36:45   (   0.41,-128.17) (   0.98,-130.75)  294.57                80
 08/18/2022   10:15:40   (   0.40,-128.17) (  -0.05,-126.30)  214.04                80
 08/19/2022   22:38:07   (  -0.40,-128.14) (  -1.20,-131.70)  406.51                80