Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 10 8.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 10/09/2023   09:10:45   (  -0.01,-104.71) (  -0.01,-104.68)    3.78                80
 10/11/2023   21:14:46   (   0.01,-104.69) (  -0.19,-105.61)  105.29                80
 10/12/2023   20:59:00   (   0.01,-104.69) (   0.79,-101.14)  403.96                80
 10/14/2023   09:21:18   (  -0.01,-104.72) (   0.38,-106.51)  204.06                80
 10/15/2023   09:00:13   (  -0.00,-104.72) (  -0.61,-102.05)  304.98                80
 10/16/2023   21:22:38   (  -0.01,-104.69) (  -0.60,-107.44)  312.90                80
 10/17/2023   21:06:52   (  -0.02,-104.69) (   0.34,-102.96)  196.47                80
 10/19/2023   09:29:10   (   0.03,-104.72) (   0.82,-108.33)  411.83                80
 10/20/2023   09:08:05   (   0.02,-104.71) (  -0.18,-103.87)   96.58                80