Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 10 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)
 10/15/2022   10:50:15   (   0.06,-137.33) (  -0.76,-133.80)  403.89                80
 10/16/2022   23:10:00   (  -0.05,-137.33) (  -0.44,-139.20)  212.27                80
 10/17/2022   22:54:13   (  -0.05,-137.33) (   0.53,-134.73)  296.01                80
 10/19/2022   11:13:50   (   0.04,-137.31) (   0.66,-140.10)  317.46                80
 10/20/2022   10:58:04   (   0.04,-137.31) (  -0.31,-135.63)  190.54                80
 10/21/2022   23:17:48   (  -0.03,-137.29) (  -0.88,-141.03)  426.45                80
 10/22/2022   23:02:03   (  -0.03,-137.28) (   0.15,-136.57)   81.43                80
 10/25/2022   11:03:13   (   0.03,-137.25) (   0.10,-137.47)   25.37                80
 10/26/2022   10:47:27   (   0.03,-137.23) (  -0.94,-133.01)  481.91                80
 10/27/2022   23:07:10   (  -0.03,-137.20) (  -0.31,-138.40)  136.81                80
 10/28/2022   22:51:24   (  -0.03,-137.18) (   0.68,-133.93)  369.67                80