Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2019 5 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)
 05/13/2019   07:10:18   (   0.01,-137.19) (   0.47,-135.02)  246.94                80
 05/13/2019   19:31:34   (  -0.01,-137.21) (   0.62,-140.17)  337.27                80
 05/15/2019   19:19:24   (  -0.01,-137.21) (   0.01,-137.22)    1.99                80
 05/17/2019   19:09:55   (  -0.01,-137.20) (  -0.66,-134.27)  333.74                80
 05/18/2019   07:31:19   (   0.01,-137.18) (  -0.48,-139.46)  258.63                80
 05/20/2019   07:16:29   (   0.01,-137.17) (   0.12,-136.50)   75.77                80
 05/22/2019   07:04:20   (   0.00,-137.15) (   0.79,-133.55)  409.55                80
 05/22/2019   19:25:36   (  -0.00,-137.16) (   0.31,-138.71)  176.08                80
 05/24/2019   19:16:06   (   0.00,-137.14) (  -0.28,-135.75)  157.26                80
 05/25/2019   07:37:30   (  -0.00,-137.12) (  -0.79,-140.95)  434.63                80
 05/26/2019   19:03:57   (   0.01,-137.11) (  -0.94,-132.80)  490.19                80