Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 3 8.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 03/08/2022   22:57:26   (   0.05,-137.22) (  -0.14,-138.18)  109.66                80
 03/09/2022   22:41:42   (   0.05,-137.21) (   0.83,-133.73)  396.89                80
 03/11/2022   11:04:02   (  -0.04,-137.20) (   0.40,-139.11)  218.27                80
 03/12/2022   10:42:59   (  -0.04,-137.19) (  -0.58,-134.66)  287.82                80
 03/13/2022   23:05:28   (   0.03,-137.16) (  -0.63,-140.08)  332.67                80
 03/14/2022   22:49:45   (   0.02,-137.15) (   0.35,-135.63)  173.18                80
 03/16/2022   11:12:05   (  -0.01,-137.13) (   0.87,-141.01)  442.75                80
 03/17/2022   10:51:02   (  -0.01,-137.11) (  -0.12,-136.56)   62.73                80
 03/19/2022   22:55:07   (   0.01,-137.06) (  -0.12,-137.53)   54.01                80
 03/20/2022   22:39:25   (   0.02,-137.04) (   0.92,-133.08)  450.91                80