Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2019 11 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 11/27/2019   10:24:19   (  -0.00,-137.21) (  -0.64,-134.26)  335.92                80
 11/28/2019   22:48:38   (  -0.00,-137.20) (  -0.53,-139.49)  261.62                80
 11/29/2019   22:27:02   (   0.01,-137.20) (   0.49,-134.92)  259.04                80
 12/01/2019   10:51:15   (  -0.00,-137.19) (   0.65,-140.13)  334.94                80
 12/02/2019   10:29:39   (  -0.01,-137.18) (  -0.37,-135.55)  185.44                80
 12/03/2019   22:53:58   (   0.01,-137.17) (  -0.79,-140.79)  412.73                80
 12/04/2019   22:32:23   (   0.01,-137.16) (   0.23,-136.22)  107.48                80
 12/06/2019   10:56:34   (  -0.00,-137.14) (   0.96,-141.41)  487.07                80
 12/07/2019   10:34:59   (  -0.01,-137.13) (  -0.06,-136.84)   32.90                80
 12/09/2019   22:40:23   (   0.00,-137.09) (  -0.07,-137.50)   46.60                80
 12/10/2019   22:18:47   (   0.00,-137.07) (   0.95,-132.92)  472.72                80