Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 10 4.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 10/04/2023   09:02:50   (   0.01,-104.72) (  -0.39,-102.84)  214.03                80
 10/05/2023   21:25:16   (  -0.01,-104.69) (  -0.83,-108.24)  404.44                80
 10/06/2023   21:09:32   (  -0.01,-104.69) (   0.20,-103.78)  104.42                80
 10/09/2023   09:10:45   (   0.00,-104.72) (   0.00,-104.68)    5.31                80
 10/11/2023   21:14:45   (   0.02,-104.70) (  -0.21,-105.61)  104.35                80
 10/12/2023   20:59:01   (  -0.00,-104.71) (   0.83,-101.15)  405.77                80
 10/14/2023   09:21:18   (   0.02,-104.74) (   0.40,-106.51)  201.16                80
 10/15/2023   09:00:13   (   0.03,-104.75) (  -0.59,-102.04)  308.24                80
 10/16/2023   21:22:38   (  -0.03,-104.72) (  -0.63,-107.44)  309.80                80
 10/17/2023   21:06:53   (  -0.03,-104.72) (   0.37,-102.97)  199.44                80