Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 8 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)
 08/15/2022   11:14:12   (   0.07,-137.32) (   0.75,-140.17)  326.13                80
 08/16/2022   10:53:08   (   0.07,-137.31) (  -0.29,-135.72)  182.05                80
 08/17/2022   23:15:35   (  -0.07,-137.31) (  -0.90,-141.13)  435.66                80
 08/18/2022   22:59:50   (  -0.07,-137.30) (   0.07,-136.67)   72.14                80
 08/21/2022   11:03:41   (   0.06,-137.29) (   0.13,-137.58)   33.50                80
 08/22/2022   10:42:37   (   0.06,-137.28) (  -0.91,-133.13)  473.58                80
 08/23/2022   23:05:03   (  -0.05,-137.25) (  -0.33,-138.53)  145.78                80
 08/24/2022   22:49:18   (  -0.05,-137.24) (   0.65,-134.07)  361.04                80
 08/26/2022   11:08:55   (   0.04,-137.22) (   0.54,-139.44)  253.23                80
 08/27/2022   10:53:10   (   0.03,-137.21) (  -0.44,-134.98)  253.34                80
 08/28/2022   23:12:56   (  -0.03,-137.18) (  -0.78,-140.39)  366.80                80