Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 8 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/28/2023   21:24:47   (   0.03,-104.67) (  -0.90,-108.69)  457.92                80
 08/29/2023   21:09:04   (   0.03,-104.67) (   0.12,-104.23)   50.25                80
 09/01/2023   09:12:59   (  -0.03,-104.71) (   0.09,-105.14)   49.21                80
 09/02/2023   08:51:55   (  -0.03,-104.71) (  -0.94,-100.69)  459.13                80
 09/03/2023   21:14:24   (   0.03,-104.68) (  -0.28,-106.09)  161.34                80
 09/04/2023   20:58:39   (   0.03,-104.68) (   0.69,-101.63)  347.20                80
 09/06/2023   09:20:59   (  -0.03,-104.72) (   0.48,-107.01)  260.18                80
 09/07/2023   08:59:55   (  -0.04,-104.72) (  -0.56,-102.55)  248.02                80
 09/08/2023   21:22:22   (   0.04,-104.68) (  -0.71,-107.95)  373.03                80
 09/09/2023   21:06:39   (   0.04,-104.68) (   0.33,-103.50)  135.44                80