Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2025 6 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 06/10/2025   09:53:10   (   0.01,-104.42) (  -0.43,-102.46)  223.04                80
 06/11/2025   22:14:59   (  -0.00,-104.39) (  -0.78,-107.68)  375.95                80
 06/12/2025   21:58:50   (  -0.00,-104.40) (   0.32,-103.13)  145.27                80
 06/14/2025   10:20:29   (   0.00,-104.42) (   0.87,-108.32)  443.86                80
 06/15/2025   09:59:00   (  -0.00,-104.42) (  -0.17,-103.75)   76.80                80
 06/17/2025   22:01:59   (   0.01,-104.39) (   0.01,-104.40)    1.80                80
 06/20/2025   10:07:29   (  -0.01,-104.42) (   0.14,-105.02)   68.73                80
 06/21/2025   09:45:59   (  -0.01,-104.42) (  -0.90,-100.45)  451.99                80
 06/22/2025   22:07:47   (   0.01,-104.38) (  -0.27,-105.68)  148.13                80