Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2019 6 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  LANDSAT-8 Lat/Lon    Distance(km)  Time Diff(sec)
 06/30/2019   07:10:38   (   0.01,-137.20) (   0.44,-135.01)  248.93                80
 06/30/2019   19:31:54   (  -0.00,-137.20) (   0.63,-140.17)  336.94                80
 07/02/2019   19:22:23   (  -0.01,-137.19) (   0.02,-137.21)    3.17                80
 07/04/2019   19:10:13   (  -0.02,-137.17) (  -0.66,-134.26)  332.05                80
 07/05/2019   07:31:37   (   0.02,-137.17) (  -0.46,-139.44)  259.17                80
 07/07/2019   07:16:46   (   0.03,-137.14) (   0.16,-136.49)   74.29                80
 07/09/2019   07:04:35   (   0.04,-137.11) (   0.78,-133.53)  407.54                80
 07/09/2019   19:25:51   (  -0.04,-137.11) (   0.30,-138.69)  179.35                80
 07/11/2019   19:16:20   (  -0.04,-137.08) (  -0.32,-135.73)  153.50                80
 07/12/2019   07:37:44   (   0.03,-137.07) (  -0.80,-140.91)  437.54                80