Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2019 8 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)
 08/21/2019   19:07:47   (   0.02,-137.21) (  -0.63,-134.24)  337.94                80
 08/22/2019   07:31:51   (  -0.02,-137.21) (  -0.50,-139.42)  252.44                80
 08/24/2019   07:17:00   (  -0.02,-137.21) (   0.12,-136.47)   84.10                80
 08/26/2019   07:04:49   (  -0.03,-137.20) (   0.74,-133.51)  419.67                80
 08/26/2019   19:28:45   (   0.03,-137.20) (   0.34,-138.67)  166.54                80
 08/28/2019   19:13:54   (   0.03,-137.18) (  -0.28,-135.71)  168.02                80
 08/29/2019   07:37:58   (  -0.04,-137.18) (  -0.84,-140.89)  422.91                80
 08/31/2019   07:25:47   (  -0.04,-137.16) (  -0.22,-137.94)   88.99                80
 09/02/2019   07:10:56   (  -0.03,-137.13) (   0.41,-134.98)  244.63                80
 09/02/2019   19:34:52   (   0.04,-137.13) (   0.67,-140.14)  342.19                80