Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2019 9 19.  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   19:22:47   (   0.03,-137.21) (   0.03,-137.19)    2.15                80
 09/22/2019   19:10:36   (   0.03,-137.20) (  -0.57,-134.23)  336.99                80
 09/23/2019   07:32:00   (  -0.03,-137.20) (  -0.49,-139.43)  254.13                80
 09/25/2019   07:17:10   (  -0.03,-137.18) (   0.12,-136.47)   80.11                80
 09/27/2019   07:04:59   (  -0.02,-137.16) (   0.73,-133.52)  413.79                80
 09/27/2019   19:26:14   (   0.02,-137.16) (   0.36,-138.67)  172.88                80
 09/29/2019   19:16:43   (   0.02,-137.13) (  -0.26,-135.72)  160.44                80
 09/30/2019   07:38:07   (  -0.02,-137.12) (  -0.86,-140.90)  430.87                80
 10/01/2019   19:04:33   (   0.03,-137.10) (  -0.87,-132.76)  493.49                80
 10/02/2019   07:25:56   (  -0.03,-137.09) (  -0.24,-137.95)   98.05                80