Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 6 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)
 06/12/2023   08:59:47   (  -0.01,-104.72) (  -0.22,-103.74)  111.39                80
 06/14/2023   21:06:35   (   0.02,-104.71) (   0.02,-104.71)    0.21                80
 06/17/2023   09:10:34   (  -0.02,-104.73) (   0.17,-105.64)  103.75                80
 06/18/2023   08:49:32   (  -0.02,-104.73) (  -0.83,-101.19)  403.70                80
 06/19/2023   21:12:01   (   0.02,-104.71) (  -0.41,-106.60)  215.44                80
 06/20/2023   20:56:19   (   0.01,-104.71) (   0.60,-102.14)  292.54                80
 06/22/2023   09:18:41   (  -0.01,-104.73) (   0.59,-107.53)  318.23                80
 06/23/2023   08:57:38   (  -0.01,-104.74) (  -0.36,-103.07)  189.69                80
 06/24/2023   21:20:07   (   0.01,-104.72) (  -0.86,-108.48)  429.53                80
 06/25/2023   21:04:24   (   0.00,-104.72) (   0.15,-104.03)   78.77                80