Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 5 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/12/2023   21:10:41   (  -0.00,-104.71) (  -0.48,-106.79)  237.14                80
 05/13/2023   20:54:57   (  -0.00,-104.71) (   0.54,-102.34)  271.19                80
 05/15/2023   09:17:16   (   0.00,-104.73) (   0.67,-107.71)  339.99                80
 05/16/2023   08:56:13   (   0.00,-104.73) (  -0.35,-103.26)  168.22                80
 05/17/2023   21:18:41   (   0.00,-104.72) (  -0.88,-108.66)  449.15                80
 05/18/2023   21:02:58   (   0.00,-104.72) (   0.14,-104.21)   59.39                80
 05/21/2023   09:06:53   (  -0.01,-104.74) (   0.10,-105.12)   43.42                80
 05/22/2023   08:45:49   (  -0.02,-104.74) (  -0.93,-100.66)  464.67                80
 05/23/2023   21:08:17   (   0.02,-104.73) (  -0.28,-106.07)  153.07                80
 05/24/2023   20:52:34   (   0.03,-104.73) (   0.76,-101.62)  355.53                80