Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 5 10.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/11/2023   08:48:12   (  -0.00,-104.72) (  -0.78,-101.39)  380.31                80
 05/12/2023   21:10:41   (   0.00,-104.72) (  -0.47,-106.79)  236.55                80
 05/13/2023   20:54:57   (   0.00,-104.72) (   0.54,-102.34)  271.97                80
 05/15/2023   09:17:17   (  -0.00,-104.74) (   0.67,-107.71)  339.16                80
 05/16/2023   08:56:13   (  -0.00,-104.74) (  -0.34,-103.26)  169.18                80
 05/17/2023   21:18:41   (   0.00,-104.74) (  -0.89,-108.66)  447.74                80
 05/18/2023   21:02:58   (   0.01,-104.74) (   0.13,-104.21)   60.89                80
 05/21/2023   09:06:54   (  -0.02,-104.76) (   0.07,-105.13)   41.52                80
 05/22/2023   08:45:50   (  -0.02,-104.76) (  -0.95,-100.67)  466.66                80
 05/23/2023   21:08:19   (   0.02,-104.76) (  -0.25,-106.08)  150.55                80