Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2019 8 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/03/2019   10:22:39   (  -0.03,-137.21) (  -0.93,-133.17)  459.61                80
 08/04/2019   22:41:39   (   0.04,-137.20) (  -0.22,-138.42)  138.35                80
 08/05/2019   22:25:24   (   0.04,-137.20) (   0.77,-133.84)  382.50                80
 08/07/2019   10:44:17   (  -0.04,-137.20) (   0.35,-139.06)  211.48                80
 08/08/2019   10:28:01   (  -0.04,-137.19) (  -0.64,-134.48)  308.95                80
 08/09/2019   22:47:02   (   0.05,-137.18) (  -0.51,-139.72)  290.18                80
 08/10/2019   22:30:46   (   0.05,-137.17) (   0.49,-135.15)  229.88                80
 08/12/2019   10:49:40   (  -0.06,-137.16) (   0.63,-140.37)  365.23                80
 08/13/2019   10:33:24   (  -0.06,-137.14) (  -0.36,-135.79)  154.50                80
 08/14/2019   22:52:24   (   0.06,-137.12) (  -0.79,-141.03)  445.59                80
 08/15/2019   22:36:09   (   0.06,-137.10) (   0.21,-136.45)   73.99                80