Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 9 6.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 09/06/2023   09:20:58   (  -0.01,-104.71) (   0.52,-106.99)  260.24                80
 09/07/2023   08:59:54   (  -0.01,-104.71) (  -0.51,-102.54)  247.83                80
 09/08/2023   21:22:23   (   0.01,-104.68) (  -0.70,-107.95)  371.69                80
 09/09/2023   21:06:38   (   0.01,-104.68) (   0.28,-103.48)  136.75                80
 09/11/2023   09:28:56   (  -0.01,-104.71) (   0.94,-108.85)  471.74                80
 09/12/2023   09:07:53   (  -0.01,-104.71) (  -0.09,-104.40)   36.72                80
 09/14/2023   21:11:57   (   0.00,-104.69) (  -0.12,-105.34)   73.83                80
 09/15/2023   20:56:12   (   0.00,-104.69) (   0.87,-100.88)  435.09                80
 09/17/2023   09:18:31   (  -0.00,-104.73) (   0.35,-106.24)  172.85                80
 09/18/2023   08:57:27   (  -0.00,-104.73) (  -0.69,-101.79)  335.69                80
 09/19/2023   21:19:54   (   0.00,-104.70) (  -0.54,-107.19)  283.90                80