Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2019 7 15.  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   07:10:41   (   0.00,-137.20) (   0.46,-134.99)  250.33                80
 07/16/2019   19:31:57   (  -0.00,-137.20) (   0.62,-140.15)  335.37                80
 07/18/2019   19:19:46   (  -0.01,-137.20) (  -0.02,-137.20)    0.93                80
 07/20/2019   19:10:15   (  -0.01,-137.19) (  -0.65,-134.24)  336.14                80
 07/21/2019   07:31:39   (   0.01,-137.19) (  -0.47,-139.43)  254.56                80
 07/23/2019   07:16:48   (   0.02,-137.18) (   0.16,-136.47)   80.46                80
 07/25/2019   07:04:37   (   0.02,-137.16) (   0.80,-133.51)  414.94                80
 07/25/2019   19:25:52   (  -0.01,-137.16) (   0.34,-138.66)  171.69                80
 07/27/2019   19:16:21   (  -0.01,-137.13) (  -0.30,-135.70)  161.83                80
 07/28/2019   07:37:45   (   0.01,-137.12) (  -0.81,-140.89)  428.99                80