Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2019 6 23.  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)
 06/23/2019   07:04:32   (   0.01,-137.18) (   0.82,-133.54)  414.74                80
 06/23/2019   19:25:46   (  -0.01,-137.20) (   0.33,-138.69)  170.48                80
 06/25/2019   19:16:17   (  -0.02,-137.18) (  -0.34,-135.74)  164.43                80
 06/26/2019   07:37:40   (   0.02,-137.17) (  -0.78,-140.93)  427.22                80
 06/27/2019   19:04:06   (  -0.02,-137.17) (  -0.96,-132.78)  498.85                80
 06/28/2019   07:25:29   (   0.02,-137.15) (  -0.17,-137.97)   93.01                80
 06/30/2019   07:10:38   (   0.01,-137.12) (   0.45,-135.01)  240.41                80
 06/30/2019   19:31:54   (  -0.01,-137.12) (   0.63,-140.17)  345.96                80
 07/02/2019   19:19:43   (  -0.01,-137.09) (   0.02,-137.21)   13.90                80
 07/04/2019   19:10:12   (  -0.02,-137.04) (  -0.60,-134.25)  317.24                80
 07/05/2019   07:31:36   (   0.02,-137.02) (  -0.52,-139.43)  274.86                80