Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 5 23.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/23/2023   21:08:17   (   0.01,-104.71) (  -0.31,-106.06)  154.33                80
 05/24/2023   20:52:33   (  -0.00,-104.71) (   0.72,-101.61)  354.12                80
 05/26/2023   09:14:52   (   0.01,-104.72) (   0.54,-106.97)  256.92                80
 05/27/2023   08:53:48   (   0.01,-104.72) (  -0.49,-102.52)  251.31                80
 05/28/2023   21:16:15   (  -0.01,-104.71) (  -0.76,-107.91)  366.53                80
 05/29/2023   21:00:32   (  -0.01,-104.71) (   0.27,-103.46)  142.02                80
 05/31/2023   09:22:51   (   0.01,-104.73) (   0.92,-108.84)  468.49                80
 06/01/2023   09:01:47   (   0.01,-104.72) (  -0.05,-104.37)   39.63                80
 06/03/2023   21:05:51   (   0.00,-104.70) (  -0.13,-105.32)   71.16                80
 06/04/2023   20:50:06   (   0.00,-104.70) (   0.85,-100.86)  436.81                80