Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 10 5.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 10/05/2023   21:25:17   (  -0.02,-104.69) (  -0.80,-108.24)  404.44                80
 10/06/2023   21:09:31   (  -0.02,-104.69) (   0.18,-103.77)  104.35                80
 10/09/2023   09:13:25   (   0.00,-104.72) (  -0.03,-104.68)    5.06                80
 10/11/2023   21:14:46   (   0.00,-104.69) (  -0.18,-105.62)  105.00                80
 10/12/2023   20:59:00   (   0.00,-104.69) (   0.81,-101.15)  404.36                80
 10/14/2023   09:21:18   (   0.00,-104.73) (   0.42,-106.51)  203.29                80
 10/15/2023   09:00:13   (   0.01,-104.73) (  -0.63,-102.05)  305.86                80
 10/16/2023   21:22:38   (  -0.01,-104.70) (  -0.65,-107.43)  312.30                80
 10/17/2023   21:06:52   (  -0.02,-104.70) (   0.35,-102.97)  196.90                80