Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2019 11 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)
 11/21/2019   07:11:03   (  -0.03,-137.18) (   0.43,-134.98)  249.81                80
 11/21/2019   19:32:19   (   0.03,-137.19) (   0.63,-140.14)  335.52                80
 11/23/2019   19:22:47   (   0.02,-137.17) (   0.00,-137.18)    2.88                80
 11/25/2019   19:10:35   (   0.02,-137.15) (  -0.63,-134.23)  333.11                80
 11/26/2019   07:29:19   (  -0.01,-137.13) (  -0.48,-139.42)  259.23                80
 11/28/2019   07:19:46   (  -0.02,-137.10) (   0.09,-136.44)   74.29                80
 11/30/2019   07:07:34   (  -0.03,-137.07) (   0.73,-133.49)  407.29                80
 11/30/2019   19:26:09   (   0.03,-137.07) (   0.39,-138.64)  178.80                80
 12/02/2019   19:16:37   (   0.04,-137.03) (  -0.25,-135.68)  153.82                80
 12/03/2019   07:35:20   (  -0.04,-137.01) (  -0.85,-140.87)  438.71                80