Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 6 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)
 06/23/2023   08:57:38   (  -0.01,-104.72) (  -0.36,-103.06)  188.71                80
 06/24/2023   21:20:07   (  -0.00,-104.71) (  -0.86,-108.48)  429.85                80
 06/25/2023   21:04:25   (  -0.00,-104.71) (   0.15,-104.02)   78.18                80
 06/28/2023   09:08:24   (  -0.00,-104.74) (   0.02,-104.96)   25.28                80
 06/29/2023   08:47:22   (  -0.01,-104.74) (  -0.99,-100.51)  482.33                80
 06/30/2023   21:09:50   (   0.01,-104.71) (  -0.28,-105.91)  137.06                80
 07/01/2023   20:54:08   (   0.00,-104.71) (   0.74,-101.46)  370.50                80
 07/03/2023   09:16:29   (  -0.00,-104.73) (   0.49,-106.84)  240.92                80
 07/04/2023   08:55:27   (  -0.00,-104.72) (  -0.53,-102.39)  266.20                80
 07/05/2023   21:17:55   (   0.00,-104.69) (  -0.73,-107.79)  354.08                80
 07/06/2023   21:02:12   (   0.00,-104.69) (   0.29,-103.34)  153.48                80