Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 5 6.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/07/2023   21:02:40   (  -0.00,-104.72) (  -0.03,-104.93)   23.20                80
 05/08/2023   20:46:56   (   0.00,-104.72) (   0.98,-100.47)  484.56                80
 05/10/2023   09:09:16   (  -0.00,-104.72) (   0.24,-105.85)  128.06                80
 05/11/2023   08:48:12   (  -0.00,-104.71) (  -0.77,-101.39)  379.25                80
 05/12/2023   21:10:41   (   0.00,-104.70) (  -0.48,-106.79)  239.13                80
 05/13/2023   20:54:57   (   0.00,-104.70) (   0.53,-102.34)  268.84                80
 05/15/2023   09:17:16   (  -0.00,-104.71) (   0.68,-107.71)  342.47                80
 05/16/2023   08:56:13   (  -0.00,-104.71) (  -0.33,-103.26)  165.34                80
 05/17/2023   21:18:41   (   0.00,-104.69) (  -0.90,-108.66)  453.05                80
 05/18/2023   21:02:58   (   0.01,-104.69) (   0.12,-104.21)   55.02                80