Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2019 6 27.  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)
 06/28/2019   07:25:29   (   0.01,-137.19) (  -0.18,-137.97)   88.37                80
 06/30/2019   07:10:38   (   0.00,-137.18) (   0.44,-135.00)  247.11                80
 06/30/2019   19:31:54   (   0.00,-137.19) (   0.64,-140.16)  338.93                80
 07/02/2019   19:19:43   (  -0.00,-137.16) (   0.02,-137.20)    5.49                80
 07/04/2019   19:10:13   (  -0.02,-137.14) (  -0.65,-134.26)  327.79                80
 07/05/2019   07:31:37   (   0.02,-137.12) (  -0.47,-139.44)  263.81                80
 07/07/2019   07:16:46   (   0.03,-137.09) (   0.15,-136.49)   68.49                80
 07/09/2019   07:04:35   (   0.04,-137.05) (   0.78,-133.53)  400.63                80
 07/09/2019   19:25:51   (  -0.03,-137.04) (   0.30,-138.69)  186.53                80