Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 12 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/03/2023   08:56:43   (   0.01,-104.67) (  -0.96,-100.42)  485.31                80
 12/04/2023   21:19:06   (   0.01,-104.64) (  -0.25,-105.80)  132.36                80
 12/05/2023   21:03:19   (   0.01,-104.64) (   0.78,-101.33)  377.50                80
 12/07/2023   09:25:34   (  -0.01,-104.67) (   0.43,-106.68)  228.40                80
 12/08/2023   09:04:26   (  -0.01,-104.67) (  -0.56,-102.20)  281.41                80
 12/09/2023   21:26:49   (   0.00,-104.64) (  -0.64,-107.59)  335.86                80
 12/10/2023   21:11:02   (  -0.01,-104.63) (   0.35,-103.11)  174.34                80
 12/12/2023   09:33:15   (   0.02,-104.67) (   0.90,-108.45)  431.37                80
 12/13/2023   09:12:09   (   0.02,-104.66) (  -0.16,-103.98)   77.98                80
 12/15/2023   21:16:04   (  -0.01,-104.61) (  -0.09,-104.88)   31.48                80
 12/16/2023   21:00:17   (  -0.00,-104.60) (   0.98,-100.42)  477.94                80