Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 9 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 09/18/2023   08:57:26   (  -0.00,-104.71) (  -0.65,-101.78)  334.43                80
 09/19/2023   21:19:53   (   0.00,-104.68) (  -0.59,-107.17)  285.36                80
 09/20/2023   21:04:10   (   0.01,-104.68) (   0.46,-102.73)  222.96                80
 09/22/2023   09:26:28   (  -0.01,-104.71) (   0.74,-108.09)  385.84                80
 09/23/2023   09:05:24   (  -0.02,-104.70) (  -0.26,-103.63)  121.98                80
 09/24/2023   21:27:51   (   0.02,-104.66) (  -0.96,-109.03)  498.69                80
 09/25/2023   21:12:06   (   0.02,-104.65) (   0.05,-104.57)    9.52                80
 09/28/2023   09:16:00   (  -0.02,-104.68) (   0.15,-105.48)   90.45                80
 09/29/2023   08:54:56   (  -0.01,-104.68) (  -0.86,-101.02)  417.91                80
 09/30/2023   21:17:22   (   0.01,-104.64) (  -0.39,-106.41)  202.04                80
 10/01/2023   21:01:38   (   0.02,-104.64) (   0.63,-101.95)  306.47                80