Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 6 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 06/07/2023   08:51:39   (  -0.01,-104.72) (  -0.64,-101.84)  327.07                80
 06/08/2023   21:14:09   (  -0.00,-104.70) (  -0.57,-107.26)  292.19                80
 06/09/2023   20:58:27   (  -0.01,-104.70) (   0.42,-102.81)  215.56                80
 06/11/2023   09:20:49   (   0.01,-104.72) (   0.78,-108.19)  395.82                80
 06/12/2023   08:59:47   (   0.01,-104.72) (  -0.21,-103.74)  111.71                80
 06/14/2023   21:06:34   (  -0.01,-104.70) (   0.01,-104.70)    2.24                80
 06/17/2023   09:10:34   (  -0.01,-104.73) (   0.19,-105.64)  103.72                80
 06/18/2023   08:49:32   (  -0.00,-104.72) (  -0.81,-101.19)  403.71                80
 06/19/2023   21:12:01   (   0.01,-104.70) (  -0.42,-106.59)  216.17                80
 06/20/2023   20:56:19   (   0.00,-104.70) (   0.58,-102.14)  291.78                80