Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 7 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)
 07/10/2022   23:18:08   (  -0.05,-137.26) (  -1.02,-141.45)  478.66                80
 07/11/2022   22:57:03   (  -0.04,-137.26) (  -0.01,-136.99)   29.95                80
 07/14/2022   11:03:37   (   0.03,-137.28) (   0.19,-137.92)   73.31                80
 07/15/2022   10:42:32   (   0.03,-137.28) (  -0.82,-133.46)  434.81                80
 07/16/2022   23:07:39   (  -0.04,-137.27) (  -0.41,-138.87)  183.01                80
 07/17/2022   22:46:34   (  -0.04,-137.27) (   0.60,-134.41)  325.18                80
 07/19/2022   11:11:33   (   0.04,-137.28) (   0.58,-139.79)  286.15                80
 07/20/2022   10:50:27   (   0.04,-137.28) (  -0.38,-135.33)  221.78                80
 07/21/2022   23:15:34   (  -0.03,-137.26) (  -0.81,-140.74)  396.99                80
 07/22/2022   22:54:30   (  -0.03,-137.25) (   0.21,-136.29)  110.49                80