Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2019 10 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)
 10/20/2019   07:11:09   (   0.02,-137.20) (   0.50,-135.01)  248.69                80
 10/20/2019   19:32:24   (  -0.02,-137.21) (   0.64,-140.16)  336.78                80
 10/22/2019   19:20:13   (  -0.01,-137.20) (  -0.00,-137.21)    0.89                80
 10/24/2019   19:10:42   (  -0.02,-137.19) (  -0.64,-134.25)  334.36                80
 10/25/2019   07:32:06   (   0.02,-137.18) (  -0.47,-139.44)  257.04                80
 10/27/2019   07:17:15   (   0.02,-137.17) (   0.18,-136.49)   77.84                80
 10/29/2019   07:07:43   (   0.02,-137.15) (   0.77,-133.52)  412.28                80
 10/29/2019   19:26:18   (  -0.02,-137.16) (   0.31,-138.69)  173.86                80
 10/31/2019   19:16:46   (  -0.01,-137.13) (  -0.28,-135.72)  159.94                80
 11/01/2019   07:35:30   (   0.01,-137.12) (  -0.83,-140.91)  431.91                80
 11/02/2019   19:04:36   (   0.00,-137.10) (  -0.93,-132.77)  493.10                80