Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2018 9 8.  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)
 09/10/2018   06:32:04   ( -70.36,-102.27) 09/10/2018   06:33:15  ( -70.26,-101.70)   24.05                71
 09/10/2018   07:22:43   (  69.99,  65.62) 09/10/2018   07:22:45  (  69.99,  65.56)    2.16                 2
 09/10/2018   08:13:25   ( -69.89,-126.92) 09/10/2018   08:12:15  ( -69.88,-126.96)    2.16                70
 09/12/2018   22:48:54   ( -70.11,  13.89) 09/12/2018   22:49:47  ( -70.09,  13.93)    3.28                53
 09/12/2018   23:39:37   (  69.95,-178.56) 09/12/2018   23:39:14  (  69.98,-178.58)    3.08                23
 09/13/2018   00:30:05   ( -69.11, -10.03) 09/13/2018   00:28:57  ( -69.16, -12.06)   80.66                68
 09/15/2018   15:05:48   ( -70.02, 129.80) 09/15/2018   15:06:18  ( -70.02, 129.72)    2.94                30
 09/15/2018   15:56:32   (  69.92, -62.74) 09/15/2018   15:55:45  (  69.91, -62.79)    2.12                47
 09/18/2018   06:32:05   (  70.30,  77.82) 09/18/2018   06:33:16  (  70.22,  78.25)   18.70                71
 09/18/2018   07:22:43   ( -69.99,-114.38) 09/18/2018   07:22:48  ( -70.01,-114.42)    3.04                 5
 09/18/2018   08:13:27   (  69.88,  53.08) 09/18/2018   08:12:15  (  69.90,  53.07)    1.33                72
 09/20/2018   22:48:57   (  70.11,-166.12) 09/20/2018   22:49:48  (  70.09,-166.06)    3.28                51
 09/20/2018   23:39:39   ( -70.00,   1.36) 09/20/2018   23:39:18  ( -69.99,   1.44)    3.00                21