Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2018 2 16.  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)
 02/16/2018   22:49:10   ( -70.12,  13.97) 02/16/2018   22:49:57  ( -70.15,  13.93)    3.21                47
 02/16/2018   23:39:55   (  70.05,-178.62) 02/16/2018   23:39:24  (  70.05,-178.56)    2.30                31
 02/19/2018   14:15:37   (  70.95, -38.91) 02/19/2018   14:16:44  (  70.86, -36.76)   78.78                67
 02/19/2018   15:06:05   ( -70.12, 129.73) 02/19/2018   15:06:26  ( -70.09, 129.74)    3.31                21
 02/19/2018   15:56:49   (  70.01, -62.78) 02/19/2018   15:55:53  (  69.99, -62.76)    1.91                56
 02/22/2018   06:32:17   (  70.17,  78.12) 02/22/2018   06:33:25  (  70.15,  78.06)    3.07                68
 02/22/2018   07:22:59   ( -70.08,-114.43) 02/22/2018   07:22:54  ( -70.09,-114.39)    2.42                 5
 02/22/2018   08:13:37   (  69.64,  53.53) 02/22/2018   08:12:26  (  69.71,  52.72)   31.94                71
 02/24/2018   22:49:11   (  70.12,-166.04) 02/24/2018   22:49:53  (  70.13,-166.08)    2.23                42
 02/24/2018   23:39:53   ( -70.03,   1.41) 02/24/2018   23:39:23  ( -70.03,   1.40)    0.40                30
 02/27/2018   14:15:34   ( -70.92, 141.14) 02/27/2018   14:16:42  ( -70.83, 143.19)   75.19                68
 02/27/2018   15:06:05   (  70.12, -50.29) 02/27/2018   15:06:20  (  70.12, -50.22)    2.52                15
 02/27/2018   15:56:46   ( -69.98, 117.25) 02/27/2018   15:55:51  ( -69.96, 117.19)    3.22                55
 03/02/2018   06:32:15   ( -70.19,-101.92) 03/02/2018   06:33:22  ( -70.16,-101.93)    3.26                67
 03/02/2018   07:22:59   (  70.08,  65.55) 03/02/2018   07:22:48  (  70.10,  65.63)    3.47                11
 03/02/2018   08:13:35   ( -69.67,-126.51) 03/02/2018   08:12:23  ( -69.72,-127.26)   29.59                72