Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2019 9 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)
 09/20/2019   19:20:07   (   0.02,-137.21) (   0.01,-137.20)    2.44                80
 09/22/2019   19:10:36   (   0.03,-137.21) (  -0.60,-134.24)  337.27                80
 09/23/2019   07:32:00   (  -0.03,-137.20) (  -0.52,-139.43)  253.96                80
 09/25/2019   07:17:10   (  -0.03,-137.18) (   0.15,-136.48)   80.46                80
 09/27/2019   07:04:59   (  -0.02,-137.16) (   0.76,-133.52)  414.21                80
 09/27/2019   19:26:15   (   0.02,-137.16) (   0.33,-138.68)  172.27                80
 09/29/2019   19:16:44   (   0.02,-137.14) (  -0.29,-135.72)  161.18                80
 09/30/2019   07:38:08   (  -0.03,-137.13) (  -0.83,-140.91)  430.26                80
 10/01/2019   19:04:33   (   0.03,-137.11) (  -0.90,-132.76)  494.32                80
 10/02/2019   07:25:57   (  -0.03,-137.10) (  -0.21,-137.95)   97.30                80