Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 9 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 09/28/2022   11:03:35   (   0.05,-137.35) (  -0.01,-137.19)   18.34                80
 09/30/2022   23:04:54   (  -0.05,-137.33) (  -0.24,-138.12)   90.91                80
 10/01/2022   22:49:08   (  -0.05,-137.32) (   0.76,-133.66)  416.80                80
 10/03/2022   11:08:46   (   0.04,-137.31) (   0.45,-139.03)  196.94                80
 10/04/2022   10:53:00   (   0.04,-137.30) (  -0.55,-134.57)  310.28                80
 10/05/2022   23:12:46   (  -0.03,-137.27) (  -0.63,-139.98)  308.42                80
 10/06/2022   22:57:00   (  -0.03,-137.26) (   0.38,-135.52)  198.78                80
 10/08/2022   11:16:37   (   0.02,-137.25) (   0.84,-140.89)  415.25                80
 10/09/2022   11:00:52   (   0.02,-137.23) (  -0.17,-136.43)   91.91                80
 10/11/2022   23:02:11   (  -0.02,-137.19) (  -0.05,-137.37)   20.19                80