Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2020 2 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 02/29/2020   10:47:03   (   0.02,-137.22) (   0.42,-139.00)  203.42                80
 03/01/2020   10:25:28   (   0.02,-137.22) (  -0.61,-134.43)  318.31                80
 03/02/2020   22:47:07   (  -0.02,-137.22) (  -0.57,-139.66)  278.82                80
 03/03/2020   22:30:51   (  -0.02,-137.21) (   0.47,-135.09)  242.40                80
 03/05/2020   10:52:22   (   0.02,-137.20) (   0.70,-140.28)  350.68                80
 03/06/2020   10:30:46   (   0.02,-137.19) (  -0.34,-135.71)  169.96                80
 03/07/2020   22:52:26   (  -0.02,-137.17) (  -0.83,-140.94)  428.80                80
 03/08/2020   22:36:09   (  -0.01,-137.16) (   0.15,-136.35)   91.54                80
 03/11/2020   10:36:04   (   0.01,-137.13) (  -0.01,-136.97)   17.49                80
 03/13/2020   22:38:48   (  -0.01,-137.08) (  -0.10,-137.63)   62.40                80