Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 4 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 04/03/2023   10:30:59   (   0.15,-128.20) (  -0.16,-126.84)  155.35                80
 04/04/2023   22:50:49   (  -0.15,-128.26) (  -1.04,-132.26)  456.00                80
 04/05/2023   22:35:07   (  -0.15,-128.28) (  -0.03,-127.81)   53.50                80
 04/08/2023   10:36:25   (   0.14,-128.28) (   0.27,-128.73)   52.19                80
 04/09/2023   10:20:42   (   0.15,-128.29) (  -0.75,-124.29)  456.55                80
 04/10/2023   22:40:32   (  -0.14,-128.33) (  -0.44,-129.71)  156.74                80
 04/11/2023   22:24:50   (  -0.15,-128.34) (   0.58,-125.26)  351.63                80
 04/13/2023   10:44:30   (   0.14,-128.31) (   0.65,-130.63)  264.52                80
 04/14/2023   10:28:47   (   0.15,-128.31) (  -0.32,-126.17)  243.48                80
 04/15/2023   22:48:37   (  -0.13,-128.34) (  -0.85,-131.60)  371.01                80
 04/16/2023   22:32:54   (  -0.14,-128.34) (   0.12,-127.14)  137.18                80