Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 1 4.  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)
 01/05/2021   06:32:36   ( -71.03,-103.39) 01/05/2021   06:33:42  ( -70.91,-100.78)   95.37                66
 01/05/2021   07:23:03   (  70.02,  65.55) 01/05/2021   07:23:23  (  70.05,  65.58)    3.32                20
 01/05/2021   08:13:45   ( -69.94,-127.01) 01/05/2021   08:12:53  ( -69.93,-126.95)    2.49                52
 01/07/2021   22:49:13   ( -70.11,  13.87) 01/07/2021   22:50:24  ( -70.09,  13.88)    2.36                71
 01/07/2021   23:39:57   (  69.99,-178.64) 01/07/2021   23:39:51  (  69.99,-178.62)    1.03                 6
 01/08/2021   00:30:36   ( -69.75, -10.96) 01/08/2021   00:29:23  ( -69.77, -11.29)   13.09                73
 01/10/2021   15:06:08   ( -70.09, 129.68) 01/10/2021   15:06:52  ( -70.09, 129.76)    2.90                44
 01/10/2021   15:56:51   (  69.92, -62.75) 01/10/2021   15:56:20  (  69.92, -62.83)    2.99                31
 01/13/2021   06:32:33   (  70.79,  77.02) 01/13/2021   06:33:41  (  70.67,  78.86)   68.85                68
 01/13/2021   07:23:02   ( -70.01,-114.43) 01/13/2021   07:23:21  ( -70.02,-114.46)    1.25                19
 01/13/2021   08:13:46   (  69.90,  53.05) 01/13/2021   08:12:48  (  69.91,  53.03)    1.20                58
 01/15/2021   22:49:15   (  70.09,-166.09) 01/15/2021   22:50:19  (  70.10,-166.09)    1.93                64
 01/15/2021   23:39:57   ( -69.99,   1.37) 01/15/2021   23:39:49  ( -70.00,   1.40)    1.54                 8
 01/16/2021   00:30:33   (  69.46, 169.47) 01/16/2021   00:29:23  (  69.50, 168.36)   43.78                70