Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2018 1 12.  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)
 01/13/2018   06:32:28   ( -70.66,-102.59) 01/13/2018   06:33:38  ( -70.52,-101.40)   46.48                70
 01/13/2018   07:23:03   (  70.07,  65.64) 01/13/2018   07:23:11  (  70.09,  65.62)    2.33                 8
 01/13/2018   08:13:45   ( -69.98,-126.90) 01/13/2018   08:12:41  ( -69.98,-126.91)    0.47                64
 01/15/2018   22:49:14   ( -70.17,  13.95) 01/15/2018   22:50:12  ( -70.18,  13.99)    1.96                58
 01/15/2018   23:39:58   (  70.06,-178.58) 01/15/2018   23:39:39  (  70.08,-178.51)    3.16                19
 01/16/2018   00:30:28   ( -69.33, -10.19) 01/16/2018   00:29:19  ( -69.42, -11.79)   63.77                69
 01/18/2018   15:06:07   ( -70.10, 129.82) 01/18/2018   15:06:40  ( -70.11, 129.77)    2.28                33
 01/18/2018   15:56:51   (  69.99, -62.71) 01/18/2018   15:56:07  (  70.00, -62.74)    1.62                44
 01/21/2018   06:32:24   (  70.40,  77.81) 01/21/2018   06:33:36  (  70.31,  78.30)   20.96                72
 01/21/2018   07:23:02   ( -70.08,-114.39) 01/21/2018   07:23:08  ( -70.09,-114.38)    0.71                 6
 01/21/2018   08:13:46   (  69.98,  53.08) 01/21/2018   08:12:35  (  69.98,  53.11)    1.32                71
 01/23/2018   22:49:15   (  70.17,-166.08) 01/23/2018   22:50:06  (  70.17,-166.02)    2.36                51
 01/23/2018   23:39:57   ( -70.07,   1.40) 01/23/2018   23:39:36  ( -70.06,   1.47)    2.64                21
 01/24/2018   00:30:24   (  69.06, 170.17) 01/24/2018   00:29:18  (  69.12, 167.84)   92.70                66
 01/26/2018   15:06:09   (  70.11, -50.21) 01/26/2018   15:06:35  (  70.08, -50.26)    3.29                26
 01/26/2018   15:56:51   ( -70.00, 117.27) 01/26/2018   15:56:05  ( -69.98, 117.23)    2.82                46