Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 8 5.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/05/2023   09:09:42   (   0.01,-104.73) (   0.03,-104.73)    1.51                80
 08/07/2023   21:11:08   (  -0.01,-104.70) (  -0.22,-105.69)  112.32                80
 08/08/2023   20:55:24   (  -0.01,-104.70) (   0.78,-101.23)  395.93                80
 08/10/2023   09:17:44   (   0.02,-104.73) (   0.45,-106.60)  212.90                80
 08/11/2023   08:56:40   (   0.02,-104.73) (  -0.55,-102.14)  295.05                80
 08/12/2023   21:19:09   (  -0.03,-104.70) (  -0.70,-107.54)  325.30                80
 08/13/2023   21:03:25   (  -0.03,-104.70) (   0.31,-103.09)  183.05                80
 08/15/2023   09:25:45   (   0.03,-104.74) (   0.85,-108.47)  424.96                80
 08/16/2023   09:04:42   (   0.03,-104.74) (  -0.16,-104.02)   83.32                80
 08/18/2023   21:08:47   (  -0.04,-104.71) (  -0.07,-104.97)   28.51                80