Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 3 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 03/13/2022   23:08:08   (   0.04,-137.20) (  -0.61,-140.08)  328.44                80
 03/14/2022   22:49:45   (   0.04,-137.20) (   0.37,-135.63)  178.78                80
 03/16/2022   11:12:05   (  -0.03,-137.20) (   0.84,-141.01)  434.64                80
 03/17/2022   10:51:02   (  -0.03,-137.20) (  -0.15,-136.56)   72.28                80
 03/19/2022   22:55:08   (   0.03,-137.17) (  -0.03,-137.54)   41.34                80
 03/20/2022   22:39:25   (   0.03,-137.17) (   0.96,-133.09)  464.99                80
 03/22/2022   11:01:44   (  -0.03,-137.15) (   0.29,-138.46)  150.04                80
 03/23/2022   10:40:42   (  -0.03,-137.14) (  -0.75,-134.02)  355.59                80
 03/24/2022   23:03:10   (   0.02,-137.10) (  -0.52,-139.43)  266.47                80
 03/25/2022   22:47:27   (   0.02,-137.08) (   0.47,-134.98)  238.75                80