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)
 05/05/2023   08:58:34   (  -0.00,-104.73) (  -0.16,-103.97)   86.86                80
 05/07/2023   21:02:40   (  -0.00,-104.72) (  -0.05,-104.93)   23.46                80
 05/08/2023   20:46:56   (  -0.00,-104.72) (   0.96,-100.47)  484.13                80
 05/10/2023   09:09:15   (  -0.00,-104.72) (   0.26,-105.84)  128.50                80
 05/11/2023   08:48:12   (  -0.00,-104.71) (  -0.75,-101.39)  378.70                80
 05/12/2023   21:10:40   (   0.00,-104.69) (  -0.50,-106.79)  239.98                80
 05/13/2023   20:54:57   (   0.00,-104.69) (   0.51,-102.34)  267.91                80
 05/15/2023   09:17:16   (  -0.00,-104.70) (   0.70,-107.71)  343.45                80
 05/16/2023   08:56:13   (  -0.00,-104.70) (  -0.31,-103.25)  164.28                80
 05/17/2023   21:18:41   (   0.01,-104.68) (  -0.91,-108.66)  454.36                80