Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 3 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 03/09/2022   22:41:42   (   0.05,-137.21) (   0.85,-133.73)  396.88                80
 03/11/2022   11:04:03   (  -0.04,-137.20) (   0.37,-139.12)  218.28                80
 03/12/2022   10:42:59   (  -0.04,-137.19) (  -0.61,-134.66)  287.80                80
 03/13/2022   23:05:29   (   0.03,-137.16) (  -0.60,-140.09)  332.77                80
 03/14/2022   22:49:45   (   0.02,-137.15) (   0.38,-135.63)  173.08                80
 03/16/2022   11:12:05   (  -0.01,-137.13) (   0.84,-141.02)  442.82                80
 03/17/2022   10:51:02   (  -0.01,-137.11) (  -0.14,-136.56)   62.62                80
 03/19/2022   22:55:08   (   0.01,-137.06) (  -0.09,-137.53)   54.09                80
 03/20/2022   22:39:24   (   0.02,-137.03) (   0.90,-133.08)  450.74                80
 03/22/2022   11:01:45   (  -0.01,-137.00) (   0.31,-138.46)  166.78                80