Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 6 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 06/17/2023   09:10:34   (  -0.01,-104.72) (   0.23,-105.63)  104.18                80
 06/18/2023   08:49:32   (  -0.01,-104.72) (  -0.83,-101.19)  402.99                80
 06/19/2023   21:12:01   (   0.02,-104.70) (  -0.41,-106.60)  216.22                80
 06/20/2023   20:56:19   (   0.02,-104.70) (   0.60,-102.14)  291.33                80
 06/22/2023   09:18:41   (  -0.02,-104.72) (   0.60,-107.53)  320.24                80
 06/23/2023   08:57:39   (  -0.01,-104.72) (  -0.41,-103.08)  187.43                80
 06/24/2023   21:20:08   (   0.01,-104.70) (  -0.82,-108.49)  431.57                80
 06/25/2023   21:04:25   (   0.00,-104.70) (   0.13,-104.02)   76.53                80
 06/28/2023   09:08:24   (  -0.01,-104.73) (   0.05,-104.96)   26.70                80