Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 3 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)
 03/13/2023   21:13:39   (  -0.01,-104.75) (  -0.79,-108.30)  404.59                80
 03/14/2023   20:57:56   (  -0.02,-104.75) (   0.17,-103.85)  103.05                80
 03/17/2023   09:01:57   (   0.02,-104.75) (   0.04,-104.78)    4.30                80
 03/19/2023   21:03:26   (  -0.02,-104.76) (  -0.23,-105.76)  113.26                80
 03/20/2023   20:47:44   (  -0.02,-104.77) (   0.75,-101.31)  394.66                80
 03/22/2023   09:10:06   (   0.02,-104.77) (   0.45,-106.69)  218.69                80
 03/23/2023   08:49:03   (   0.02,-104.78) (  -0.54,-102.24)  289.24                80
 03/24/2023   21:11:34   (  -0.02,-104.79) (  -0.67,-107.66)  326.96                80
 03/25/2023   20:55:51   (  -0.02,-104.80) (   0.33,-103.21)  181.28                80