Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2020 3 30.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 04/01/2020   10:41:01   (  -0.02,-137.22) (   0.06,-137.49)   32.01                80
 04/02/2020   10:19:26   (  -0.02,-137.21) (  -0.98,-132.92)  489.21                80
 04/03/2020   22:41:04   (   0.01,-137.19) (  -0.21,-138.14)  108.84                80
 04/04/2020   22:24:49   (   0.01,-137.18) (   0.83,-133.57)  412.15                80
 04/06/2020   10:46:19   (  -0.00,-137.18) (   0.37,-138.76)  180.60                80
 04/07/2020   10:24:44   (  -0.01,-137.17) (  -0.67,-134.18)  339.86                80
 04/08/2020   22:46:22   (   0.01,-137.14) (  -0.52,-139.41)  259.55                80
 04/09/2020   22:30:06   (   0.01,-137.12) (   0.53,-134.84)  260.63                80
 04/11/2020   10:51:38   (  -0.01,-137.11) (   0.63,-140.04)  333.21                80
 04/12/2020   10:30:01   (  -0.01,-137.09) (  -0.36,-135.45)  186.43                80