Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 4 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 04/24/2023   09:00:52   (   0.00,-104.74) (   0.01,-104.67)    7.59                80
 04/26/2023   21:04:59   (   0.00,-104.73) (  -0.19,-105.64)  102.80                80
 04/27/2023   20:49:16   (   0.00,-104.73) (   0.81,-101.18)  405.28                80
 04/29/2023   09:11:35   (   0.00,-104.74) (   0.42,-106.55)  206.25                80
 04/30/2023   08:50:32   (  -0.00,-104.74) (  -0.58,-102.09)  301.80                80
 05/01/2023   21:13:01   (  -0.00,-104.74) (  -0.62,-107.51)  315.68                80
 05/02/2023   20:57:17   (   0.00,-104.74) (   0.39,-103.05)  192.70                80
 05/04/2023   09:19:37   (  -0.01,-104.76) (   0.82,-108.43)  418.16                80
 05/05/2023   08:58:33   (  -0.01,-104.76) (  -0.20,-103.97)   89.74                80
 05/07/2023   21:02:38   (   0.03,-104.74) (  -0.01,-104.93)   20.75                80