Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 8 1.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/01/2023   21:21:30   (   0.04,-104.69) (  -0.75,-108.28)  409.62                80
 08/02/2023   21:05:46   (   0.04,-104.69) (   0.24,-103.83)   98.90                80
 08/05/2023   09:09:43   (  -0.05,-104.74) (  -0.04,-104.75)    0.49                80
 08/07/2023   21:11:09   (   0.05,-104.72) (  -0.15,-105.70)  111.33                80
 08/08/2023   20:55:26   (   0.05,-104.73) (   0.84,-101.25)  397.54                80
 08/10/2023   09:17:45   (  -0.06,-104.78) (   0.39,-106.61)  209.95                80
 08/11/2023   08:56:42   (  -0.06,-104.79) (  -0.67,-102.17)  298.57                80
 08/12/2023   21:19:11   (   0.07,-104.75) (  -0.57,-107.57)  321.74                80
 08/13/2023   21:03:27   (   0.07,-104.76) (   0.43,-103.12)  187.09                80