Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2019 11 23.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 11/23/2019   22:40:38   (  -0.00,-137.24) (  -0.20,-138.22)  111.34                80
 11/24/2019   22:24:23   (  -0.01,-137.24) (   0.82,-133.64)  410.61                80
 11/26/2019   10:43:14   (   0.01,-137.25) (   0.37,-138.84)  181.75                80
 11/27/2019   10:24:19   (   0.02,-137.25) (  -0.64,-134.26)  339.81                80
 11/28/2019   22:48:38   (  -0.02,-137.24) (  -0.52,-139.50)  257.07                80
 11/29/2019   22:27:03   (  -0.02,-137.24) (   0.50,-134.92)  264.09                80
 12/01/2019   10:51:14   (   0.03,-137.24) (   0.70,-140.12)  329.37                80
 12/02/2019   10:29:39   (   0.02,-137.23) (  -0.38,-135.56)  191.52                80
 12/03/2019   22:53:58   (  -0.03,-137.22) (  -0.84,-140.78)  406.09                80
 12/04/2019   22:32:22   (  -0.03,-137.22) (   0.18,-136.21)  114.60                80
 12/06/2019   10:56:35   (   0.03,-137.21) (   0.96,-141.42)  479.51                80