Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 5 4.  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,-104.73) (   0.82,-108.43)  421.03                80
 05/05/2023   08:58:34   (   0.00,-104.73) (  -0.18,-103.97)   86.80                80
 05/07/2023   21:02:40   (  -0.00,-104.72) (  -0.02,-104.93)   23.52                80
 05/08/2023   20:46:57   (   0.00,-104.72) (   0.99,-100.48)  484.35                80
 05/10/2023   09:09:16   (  -0.01,-104.72) (   0.23,-105.85)  128.36                80
 05/11/2023   08:48:12   (  -0.01,-104.71) (  -0.78,-101.39)  378.85                80
 05/12/2023   21:10:41   (   0.02,-104.70) (  -0.46,-106.80)  239.75                80
 05/13/2023   20:54:57   (   0.02,-104.69) (   0.55,-102.34)  268.15                80
 05/15/2023   09:17:17   (  -0.02,-104.71) (   0.66,-107.72)  343.18                80
 05/16/2023   08:56:13   (  -0.02,-104.70) (  -0.35,-103.26)  164.63                80
 05/17/2023   21:18:41   (   0.02,-104.69) (  -0.87,-108.67)  453.81                80