Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 5 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/04/2023   09:19:38   (   0.00,-104.76) (   0.82,-108.43)  418.34                80
 05/05/2023   08:58:34   (   0.00,-104.76) (  -0.18,-103.97)   90.17                80
 05/07/2023   21:02:40   (   0.00,-104.77) (  -0.02,-104.93)   18.38                80
 05/08/2023   20:46:56   (   0.01,-104.77) (   0.99,-100.48)  490.00                80
 05/10/2023   09:09:16   (  -0.02,-104.78) (   0.22,-105.85)  121.51                80
 05/11/2023   08:48:12   (  -0.02,-104.78) (  -0.79,-101.39)  386.49                80
 05/12/2023   21:10:41   (   0.01,-104.78) (  -0.45,-106.80)  230.91                80
 05/13/2023   20:54:57   (   0.01,-104.78) (   0.57,-102.35)  277.84                80
 05/15/2023   09:17:16   (  -0.01,-104.80) (   0.64,-107.72)  332.32                80
 05/16/2023   08:56:13   (  -0.02,-104.81) (  -0.38,-103.27)  176.19                80