Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2018 9 13.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-20) NOAA-20 Lat/Lon Date Time(LANDSAT-8) LANDSAT-8 Lat/Lon    Distance(km)  Time Diff(sec)
 09/15/2018   15:05:49   ( -70.08, 129.70) 09/15/2018   15:06:17  ( -70.07, 129.78)    3.54                28
 09/15/2018   15:56:32   (  69.92, -62.74) 09/15/2018   15:55:45  (  69.91, -62.80)    2.71                47
 09/18/2018   06:32:05   (  70.31,  77.81) 09/18/2018   06:33:16  (  70.21,  78.24)   19.31                71
 09/18/2018   07:22:43   ( -70.00,-114.40) 09/18/2018   07:22:48  ( -70.00,-114.44)    1.73                 5
 09/18/2018   08:13:27   (  69.89,  53.07) 09/18/2018   08:12:15  (  69.89,  53.05)    0.83                72
 09/20/2018   22:48:56   (  70.07,-166.05) 09/20/2018   22:49:48  (  70.08,-166.07)    1.64                52
 09/20/2018   23:39:38   ( -69.96,   1.42) 09/20/2018   23:39:18  ( -69.98,   1.41)    1.40                20
 09/21/2018   00:30:06   (  69.01, 170.11) 09/21/2018   00:28:59  (  69.09, 167.86)   89.83                67
 09/23/2018   15:05:50   (  70.04, -50.24) 09/23/2018   15:06:17  (  70.05, -50.23)    1.60                27
 09/23/2018   15:56:32   ( -69.93, 117.24) 09/23/2018   15:55:47  ( -69.95, 117.26)    2.32                45
 09/26/2018   06:32:06   ( -70.37,-102.29) 09/26/2018   06:33:18  ( -70.25,-101.71)   25.62                72
 09/26/2018   07:22:45   (  70.01,  65.58) 09/26/2018   07:22:47  (  70.02,  65.61)    1.76                 2
 09/26/2018   08:13:27   ( -69.90,-126.95) 09/26/2018   08:12:17  ( -69.92,-126.90)    3.06                70