Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 5 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)
 05/02/2023   20:57:18   (  -0.00,-104.75) (   0.39,-103.06)  193.10                80
 05/04/2023   09:19:37   (   0.00,-104.77) (   0.83,-108.43)  417.11                80
 05/05/2023   08:58:34   (   0.00,-104.78) (  -0.17,-103.97)   91.57                80
 05/07/2023   21:02:40   (   0.00,-104.78) (  -0.02,-104.93)   16.72                80
 05/08/2023   20:46:56   (   0.01,-104.79) (   0.99,-100.48)  491.81                80
 05/10/2023   09:09:16   (  -0.02,-104.80) (   0.22,-105.85)  119.30                80
 05/11/2023   08:48:12   (  -0.02,-104.80) (  -0.80,-101.40)  388.93                80
 05/12/2023   21:10:40   (   0.01,-104.80) (  -0.44,-106.80)  228.27                80
 05/13/2023   20:54:57   (   0.00,-104.80) (   0.58,-102.35)  280.69                80
 05/15/2023   09:17:16   (  -0.01,-104.83) (   0.62,-107.72)  329.07                80