Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2019 7 16.  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)
 07/16/2019   07:10:42   (   0.00,-137.20) (   0.47,-135.00)  250.28                80
 07/16/2019   19:31:57   (  -0.00,-137.20) (   0.60,-140.16)  335.39                80
 07/18/2019   19:19:46   (  -0.01,-137.20) (  -0.03,-137.20)    2.59                80
 07/20/2019   19:10:15   (  -0.01,-137.19) (  -0.66,-134.24)  336.02                80
 07/21/2019   07:31:39   (   0.01,-137.19) (  -0.46,-139.43)  254.77                80
 07/23/2019   07:16:48   (   0.02,-137.17) (   0.18,-136.47)   80.21                80
 07/25/2019   07:04:37   (   0.02,-137.16) (   0.81,-133.52)  414.61                80
 07/25/2019   19:25:52   (  -0.01,-137.15) (   0.32,-138.66)  171.95                80
 07/27/2019   19:16:21   (  -0.01,-137.13) (  -0.32,-135.71)  161.48                80
 07/28/2019   07:37:45   (   0.01,-137.12) (  -0.80,-140.89)  429.41                80
 07/29/2019   19:04:10   (  -0.01,-137.09) (  -0.95,-132.75)  493.88                80