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

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 10/11/2023   21:14:45   (   0.01,-104.72) (  -0.19,-105.61)  101.19                80
 10/12/2023   20:59:00   (   0.01,-104.74) (   0.80,-101.14)  408.98                80
 10/14/2023   09:21:18   (  -0.01,-104.78) (   0.37,-106.51)  197.66                80
 10/15/2023   09:00:13   (  -0.01,-104.79) (  -0.62,-102.05)  312.28                80
 10/16/2023   21:22:38   (   0.01,-104.77) (  -0.59,-107.44)  304.37                80
 10/17/2023   21:06:53   (   0.01,-104.78) (   0.41,-102.97)  205.52                80
 10/19/2023   09:29:10   (  -0.02,-104.82) (   0.80,-108.33)  401.59                80
 10/20/2023   09:08:05   (  -0.02,-104.82) (  -0.26,-103.88)  107.77                80
 10/22/2023   21:12:04   (   0.03,-104.80) (   0.03,-104.80)    0.38                80