Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2019 4 13.  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)
 04/13/2019   19:21:58   (   0.00,-137.22) (  -0.03,-137.21)    3.75                80
 04/15/2019   19:09:45   (  -0.00,-137.21) (  -0.61,-134.24)  336.41                80
 04/16/2019   07:31:08   (   0.00,-137.17) (  -0.50,-139.44)  258.28                80
 04/18/2019   07:16:16   (   0.00,-137.15) (   0.14,-136.48)   76.11                80
 04/20/2019   07:04:04   (   0.00,-137.13) (   0.78,-133.53)  410.13                80
 04/20/2019   19:25:19   (  -0.00,-137.16) (   0.33,-138.68)  173.33                80
 04/22/2019   19:15:47   (   0.00,-137.13) (  -0.31,-135.73)  160.05                80
 04/23/2019   07:37:11   (  -0.00,-137.10) (  -0.79,-140.92)  434.07                80
 04/24/2019   19:03:34   (  -0.00,-137.10) (  -0.90,-132.76)  492.83                80
 04/25/2019   07:24:58   (   0.00,-137.07) (  -0.20,-137.96)  101.54                80