Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 12 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/12/2023   09:33:16   (  -0.00,-104.69) (   0.87,-108.45)  429.10                80
 12/13/2023   09:12:10   (   0.00,-104.69) (  -0.17,-103.99)   80.86                80
 12/15/2023   21:16:05   (  -0.01,-104.66) (  -0.05,-104.89)   26.27                80
 12/16/2023   21:00:18   (  -0.02,-104.66) (   0.94,-100.41)  483.85                80
 12/18/2023   09:22:32   (   0.02,-104.69) (   0.24,-105.76)  121.89                80
 12/19/2023   09:01:25   (   0.02,-104.69) (  -0.75,-101.29)  388.23                80
 12/20/2023   21:23:48   (  -0.02,-104.66) (  -0.46,-106.67)  228.59                80
 12/21/2023   21:08:01   (  -0.03,-104.67) (   0.53,-102.19)  281.76                80
 12/23/2023   09:30:14   (   0.03,-104.70) (   0.70,-107.53)  323.42                80
 12/24/2023   09:09:07   (   0.03,-104.70) (  -0.35,-103.07)  186.75                80