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

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 04/04/2023   22:50:49   (  -0.15,-128.26) (  -1.05,-132.26)  455.84                80
 04/05/2023   22:35:07   (  -0.15,-128.28) (  -0.04,-127.81)   53.68                80
 04/08/2023   10:36:24   (   0.14,-128.28) (   0.27,-128.73)   52.12                80
 04/09/2023   10:20:42   (   0.15,-128.29) (  -0.74,-124.28)  456.69                80
 04/10/2023   22:40:32   (  -0.14,-128.33) (  -0.45,-129.70)  156.41                80
 04/11/2023   22:24:50   (  -0.15,-128.34) (   0.57,-125.26)  351.99                80
 04/13/2023   10:44:30   (   0.14,-128.31) (   0.65,-130.63)  264.25                80
 04/14/2023   10:28:47   (   0.15,-128.31) (  -0.32,-126.17)  243.78                80
 04/15/2023   22:48:37   (  -0.13,-128.34) (  -0.87,-131.59)  370.53                80
 04/16/2023   22:32:53   (  -0.14,-128.35) (   0.11,-127.13)  137.70                80