Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2019 10 26.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 10/27/2019   22:54:26   (  -0.00,-137.20) (  -0.82,-140.91)  422.61                80
 10/28/2019   22:35:31   (  -0.00,-137.20) (   0.19,-136.33)   98.21                80
 10/30/2019   10:57:02   (   0.00,-137.19) (   0.97,-141.54)  495.85                80
 10/31/2019   10:35:27   (  -0.00,-137.18) (  -0.04,-136.96)   24.55                80
 11/02/2019   22:38:11   (   0.00,-137.16) (  -0.11,-137.63)   53.89                80
 11/03/2019   22:21:56   (   0.00,-137.14) (   0.90,-133.05)  466.17                80
 11/05/2019   10:43:27   (  -0.00,-137.12) (   0.27,-138.25)  129.03                80
 11/06/2019   10:21:52   (  -0.00,-137.11) (  -0.74,-133.68)  390.80                80
 11/07/2019   22:43:32   (   0.00,-137.09) (  -0.40,-138.92)  208.52                80
 11/08/2019   22:27:17   (   0.00,-137.07) (   0.61,-134.34)  311.09                80