Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2019 5 20.  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)
 05/20/2019   07:16:28   (   0.01,-137.18) (   0.16,-136.50)   78.19                80
 05/22/2019   07:04:18   (   0.03,-137.18) (   0.80,-133.54)  413.29                80
 05/22/2019   19:25:34   (  -0.03,-137.20) (   0.29,-138.70)  170.67                80
 05/24/2019   19:16:04   (  -0.04,-137.19) (  -0.35,-135.75)  164.11                80
 05/25/2019   07:37:28   (   0.04,-137.17) (  -0.79,-140.94)  428.58                80
 05/26/2019   19:03:54   (  -0.04,-137.18) (  -0.99,-132.80)  498.59                80
 05/27/2019   07:25:18   (   0.04,-137.16) (  -0.14,-137.98)   94.26                80
 05/29/2019   07:10:28   (   0.05,-137.14) (   0.50,-135.03)  239.67                80
 05/29/2019   19:31:43   (  -0.04,-137.15) (   0.59,-140.19)  345.53                80
 05/31/2019   19:19:32   (  -0.04,-137.12) (   0.01,-137.22)   12.61                80
 06/02/2019   19:10:03   (  -0.04,-137.09) (  -0.64,-134.27)  320.27                80