Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 8 2.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/02/2023   21:05:47   (   0.04,-104.69) (   0.25,-103.83)   98.44                80
 08/05/2023   09:09:43   (  -0.04,-104.74) (  -0.05,-104.75)    1.17                80
 08/07/2023   21:11:09   (   0.05,-104.72) (  -0.15,-105.71)  111.28                80
 08/08/2023   20:55:26   (   0.05,-104.73) (   0.85,-101.25)  397.73                80
 08/10/2023   09:17:45   (  -0.05,-104.78) (   0.38,-106.62)  209.83                80
 08/11/2023   08:56:42   (  -0.06,-104.79) (  -0.62,-102.16)  298.80                80
 08/12/2023   21:19:11   (   0.06,-104.76) (  -0.57,-107.58)  321.12                80
 08/13/2023   21:03:27   (   0.07,-104.77) (   0.44,-103.12)  187.82                80
 08/15/2023   09:25:47   (  -0.07,-104.82) (   0.78,-108.49)  418.98                80