Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 6 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 06/28/2023   09:08:25   (  -0.01,-104.76) (   0.01,-104.96)   23.17                80
 06/29/2023   08:47:22   (  -0.01,-104.76) (  -1.01,-100.51)  485.43                80
 06/30/2023   21:09:50   (   0.02,-104.75) (  -0.26,-105.91)  132.90                80
 07/01/2023   20:54:08   (   0.02,-104.76) (   0.75,-101.46)  375.52                80
 07/03/2023   09:16:30   (  -0.03,-104.79) (   0.42,-106.85)  234.34                80
 07/04/2023   08:55:28   (  -0.03,-104.80) (  -0.60,-102.40)  273.62                80
 07/05/2023   21:17:56   (   0.04,-104.78) (  -0.66,-107.80)  345.71                80
 07/06/2023   21:02:14   (   0.04,-104.78) (   0.36,-103.36)  162.83                80
 07/08/2023   09:24:35   (  -0.04,-104.83) (   0.86,-108.73)  445.87                80
 07/09/2023   09:03:32   (  -0.04,-104.83) (  -0.16,-104.28)   62.66                80