Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 11 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 11/13/2023   21:09:09   (   0.00,-104.66) (   0.34,-103.09)  178.19                80
 11/15/2023   09:31:25   (  -0.00,-104.68) (   0.85,-108.45)  429.11                80
 11/16/2023   09:10:19   (   0.00,-104.68) (  -0.15,-103.98)   80.07                80
 11/18/2023   21:14:15   (  -0.01,-104.64) (  -0.09,-104.89)   28.71                80
 11/19/2023   20:58:29   (  -0.01,-104.64) (   0.92,-100.42)  480.74                80
 11/21/2023   09:20:45   (   0.01,-104.67) (   0.25,-105.78)  126.33                80
 11/22/2023   08:59:39   (   0.01,-104.66) (  -0.75,-101.31)  383.12                80
 11/23/2023   21:22:02   (  -0.02,-104.63) (  -0.47,-106.69)  234.54                80
 11/24/2023   21:06:16   (  -0.02,-104.63) (   0.54,-102.22)  275.21                80
 11/26/2023   09:28:31   (   0.02,-104.66) (   0.67,-107.57)  331.15                80