Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2018 3 7.  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)
 03/07/2018   14:15:31   (  70.79, -38.66) 03/07/2018   14:16:39  (  70.69, -37.03)   61.04                68
 03/07/2018   15:06:01   ( -70.08, 129.78) 03/07/2018   15:06:18  ( -70.08, 129.72)    2.64                17
 03/07/2018   15:56:46   (  70.01, -62.80) 03/07/2018   15:55:45  (  69.98, -62.78)    2.83                61
 03/10/2018   06:32:14   (  70.18,  78.08) 03/10/2018   06:33:16  (  70.17,  78.09)    0.80                62
 03/10/2018   07:22:55   ( -70.04,-114.39) 03/10/2018   07:22:46  ( -70.06,-114.44)    2.65                 9
 03/10/2018   08:13:31   (  69.49,  53.73) 03/10/2018   08:12:21  (  69.51,  52.45)   49.71                70
 03/12/2018   22:49:08   (  70.14,-166.10) 03/12/2018   22:49:44  (  70.14,-166.08)    0.89                36
 03/12/2018   23:39:49   ( -70.00,   1.43) 03/12/2018   23:39:14  ( -70.03,   1.40)    2.99                35
 03/15/2018   14:15:27   ( -70.75, 141.40) 03/15/2018   14:16:36  ( -70.65, 142.90)   56.27                69
 03/15/2018   15:06:01   (  70.11, -50.27) 03/15/2018   15:06:11  (  70.10, -50.25)    1.36                10
 03/15/2018   15:56:42   ( -69.97, 117.26) 03/15/2018   15:55:41  ( -70.00, 117.23)    3.14                61
 03/18/2018   06:32:11   ( -70.19,-101.94) 03/18/2018   06:33:12  ( -70.18,-101.91)    1.89                61
 03/18/2018   07:22:55   (  70.08,  65.55) 03/18/2018   07:22:39  (  70.06,  65.57)    2.11                16
 03/18/2018   08:13:27   ( -69.46,-126.22) 03/18/2018   08:12:17  ( -69.52,-127.54)   52.00                70
 03/20/2018   22:49:05   ( -70.15,  13.89) 03/20/2018   22:49:40  ( -70.13,  13.91)    2.45                35
 03/20/2018   23:39:49   (  70.04,-178.64) 03/20/2018   23:39:07  (  70.02,-178.61)    3.26                42