Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 3 23.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 03/23/2023   10:30:25   (   0.15,-127.90) (   0.06,-127.48)   46.88                80
 03/25/2023   22:34:34   (  -0.14,-128.02) (  -0.25,-128.46)   50.37                80
 03/26/2023   22:18:53   (  -0.15,-128.05) (   0.79,-124.02)  460.77                80
 03/28/2023   10:38:34   (   0.15,-128.07) (   0.45,-129.39)  151.10                80
 03/29/2023   10:20:12   (   0.15,-128.10) (  -0.54,-124.94)  359.74                80
 03/30/2023   22:42:43   (  -0.15,-128.18) (  -0.62,-130.37)  249.91                80
 03/31/2023   22:27:00   (  -0.15,-128.21) (   0.37,-125.92)  260.91                80
 04/02/2023   10:46:42   (   0.15,-128.22) (   0.85,-131.30)  351.14                80
 04/03/2023   10:30:59   (   0.16,-128.25) (  -0.15,-126.85)  159.45                80
 04/04/2023   22:50:50   (  -0.15,-128.32) (  -1.06,-132.27)  450.93                80
 04/05/2023   22:35:07   (  -0.15,-128.34) (  -0.05,-127.82)   59.59                80