Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2020 8 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)
 08/19/2020   07:13:28   (   0.02,-137.19) (   0.47,-135.00)  249.11                80
 08/19/2020   19:32:04   (  -0.03,-137.19) (   0.62,-140.15)  336.95                80
 08/21/2020   19:22:35   (  -0.03,-137.19) (  -0.04,-137.21)    2.58                80
 08/23/2020   19:10:26   (  -0.03,-137.18) (  -0.68,-134.26)  332.25                80
 08/24/2020   07:29:10   (   0.03,-137.17) (  -0.48,-139.44)  259.33                80
 08/26/2020   07:19:41   (   0.02,-137.15) (   0.14,-136.49)   73.95                80
 08/28/2020   07:04:52   (   0.01,-137.12) (   0.75,-133.54)  406.47                80
 08/28/2020   19:28:49   (  -0.01,-137.12) (   0.30,-138.71)  180.23                80
 08/30/2020   19:16:40   (  -0.00,-137.09) (  -0.28,-135.75)  151.64                80
 08/31/2020   07:35:24   (   0.00,-137.07) (  -0.82,-140.95)  440.39                80
 09/01/2020   19:04:32   (  -0.00,-137.05) (  -0.91,-132.81)  483.02                80