Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 5 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)
 05/28/2023   21:16:16   (   0.00,-104.71) (  -0.72,-107.92)  366.53                80
 05/29/2023   21:00:33   (   0.00,-104.71) (   0.31,-103.47)  142.01                80
 05/31/2023   09:22:51   (  -0.00,-104.73) (   0.95,-108.83)  468.39                80
 06/01/2023   09:01:48   (  -0.00,-104.73) (  -0.09,-104.38)   39.68                80
 06/03/2023   21:05:51   (  -0.00,-104.70) (  -0.11,-105.33)   70.63                80
 06/04/2023   20:50:07   (  -0.01,-104.70) (   0.87,-100.87)  437.54                80
 06/06/2023   09:12:26   (   0.02,-104.71) (   0.34,-106.24)  173.46                80
 06/07/2023   08:51:22   (   0.02,-104.71) (  -0.64,-101.77)  334.22                80
 06/08/2023   21:13:49   (  -0.02,-104.68) (  -0.57,-107.18)  284.75                80
 06/09/2023   20:58:05   (  -0.02,-104.68) (   0.41,-102.72)  223.38                80