Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 12 1.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/02/2023   09:17:50   (  -0.00,-104.67) (   0.02,-104.90)   24.71                80
 12/03/2023   08:56:43   (  -0.00,-104.67) (  -0.96,-100.42)  485.14                80
 12/04/2023   21:19:06   (  -0.00,-104.64) (  -0.25,-105.80)  132.17                80
 12/05/2023   21:03:18   (  -0.00,-104.64) (   0.72,-101.32)  377.93                80
 12/07/2023   09:25:34   (   0.01,-104.68) (   0.43,-106.68)  227.64                80
 12/08/2023   09:04:26   (   0.01,-104.68) (  -0.55,-102.20)  282.30                80
 12/09/2023   21:26:49   (  -0.01,-104.64) (  -0.70,-107.57)  335.38                80
 12/10/2023   21:11:02   (  -0.01,-104.64) (   0.34,-103.11)  174.62                80
 12/12/2023   09:33:15   (   0.02,-104.67) (   0.90,-108.45)  430.88                80
 12/13/2023   09:12:09   (   0.02,-104.67) (  -0.15,-103.98)   78.69                80