Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 8 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/13/2023   21:03:26   (  -0.00,-104.69) (   0.38,-103.10)  182.15                80
 08/15/2023   09:25:46   (   0.01,-104.72) (   0.84,-108.47)  427.47                80
 08/16/2023   09:04:42   (   0.01,-104.72) (  -0.17,-104.02)   80.60                80
 08/18/2023   21:08:47   (  -0.01,-104.70) (  -0.07,-104.96)   30.39                80
 08/19/2023   20:53:03   (  -0.01,-104.70) (   0.95,-100.51)  478.04                80
 08/21/2023   09:15:23   (   0.01,-104.73) (   0.25,-105.88)  130.94                80
 08/22/2023   08:54:19   (   0.01,-104.73) (  -0.76,-101.43)  377.17                80
 08/23/2023   21:16:48   (  -0.01,-104.70) (  -0.48,-106.83)  242.63                80
 08/24/2023   21:01:04   (  -0.01,-104.70) (   0.54,-102.38)  265.46                80
 08/26/2023   09:23:22   (   0.02,-104.72) (   0.71,-107.74)  343.83                80