Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2020 3 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)
 03/29/2020   22:38:27   (   0.03,-137.21) (   0.13,-136.88)   38.29                80
 04/01/2020   10:41:02   (  -0.02,-137.22) (   0.03,-137.50)   31.68                80
 04/02/2020   10:19:25   (  -0.02,-137.21) (  -0.95,-132.91)  489.54                80
 04/03/2020   22:41:05   (   0.01,-137.19) (  -0.18,-138.15)  108.54                80
 04/04/2020   22:24:48   (   0.01,-137.18) (   0.81,-133.56)  412.53                80
 04/06/2020   10:46:20   (  -0.00,-137.18) (   0.34,-138.76)  180.04                80
 04/07/2020   10:24:44   (  -0.01,-137.17) (  -0.70,-134.19)  340.49                80
 04/08/2020   22:46:22   (   0.01,-137.14) (  -0.48,-139.42)  258.91                80
 04/09/2020   22:30:06   (   0.01,-137.13) (   0.50,-134.83)  261.35                80
 04/11/2020   10:51:37   (  -0.01,-137.12) (   0.65,-140.03)  332.34                80
 04/12/2020   10:30:02   (  -0.01,-137.10) (  -0.39,-135.46)  187.36                80