Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 9 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 09/12/2023   09:07:53   (  -0.01,-104.71) (  -0.10,-104.39)   36.29                80
 09/14/2023   21:11:57   (   0.01,-104.69) (  -0.11,-105.34)   74.08                80
 09/15/2023   20:56:12   (   0.00,-104.69) (   0.88,-100.88)  434.75                80
 09/17/2023   09:18:31   (  -0.00,-104.72) (   0.34,-106.24)  173.79                80
 09/18/2023   08:57:26   (  -0.01,-104.72) (  -0.65,-101.78)  334.64                80
 09/19/2023   21:19:53   (   0.01,-104.69) (  -0.58,-107.18)  284.72                80
 09/20/2023   21:04:10   (   0.01,-104.69) (   0.47,-102.73)  223.64                80
 09/22/2023   09:26:28   (  -0.02,-104.71) (   0.74,-108.10)  385.42                80
 09/23/2023   09:05:24   (  -0.02,-104.71) (  -0.25,-103.63)  122.48                80
 09/24/2023   21:27:51   (   0.02,-104.67) (  -0.96,-109.04)  497.73                80
 09/25/2023   21:12:07   (   0.01,-104.67) (   0.04,-104.58)   10.54                80