Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2019 6 28.  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   07:25:30   (   0.01,-137.19) (  -0.14,-137.97)   88.13                80
 06/30/2019   07:10:39   (   0.00,-137.19) (   0.48,-135.01)  247.31                80
 06/30/2019   19:31:54   (  -0.00,-137.19) (   0.66,-140.16)  338.73                80
 07/02/2019   19:19:44   (  -0.01,-137.17) (  -0.01,-137.21)    5.12                80
 07/04/2019   19:10:13   (  -0.02,-137.14) (  -0.63,-134.25)  328.20                80
 07/05/2019   07:31:36   (   0.02,-137.13) (  -0.49,-139.44)  263.34                80
 07/07/2019   07:16:47   (   0.03,-137.09) (   0.19,-136.49)   69.13                80
 07/09/2019   07:04:36   (   0.04,-137.06) (   0.81,-133.53)  401.31                80
 07/09/2019   19:25:50   (  -0.03,-137.05) (   0.33,-138.68)  185.84                80
 07/11/2019   19:16:19   (  -0.03,-137.01) (  -0.29,-135.72)  146.03                80