Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2018 3 6.  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   14:16:40  (  70.64, -37.11)   59.40                69
 03/07/2018   15:06:01   ( -70.07, 129.79) 03/07/2018   15:06:18  ( -70.09, 129.72)    2.94                17
 03/07/2018   15:56:46   (  70.00, -62.80) 03/07/2018   15:55:45  (  69.98, -62.78)    2.30                61
 03/10/2018   06:32:14   (  70.17,  78.09) 03/10/2018   06:33:16  (  70.17,  78.09)    0.20                62
 03/10/2018   07:22:55   ( -70.04,-114.38) 03/10/2018   07:22:46  ( -70.06,-114.44)    3.30                 9
 03/10/2018   08:13:31   (  69.49,  53.73) 03/10/2018   08:12:21  (  69.51,  52.45)   49.78                70
 03/12/2018   22:49:08   (  70.14,-166.09) 03/12/2018   22:49:44  (  70.14,-166.08)    0.50                36
 03/12/2018   23:39:50   ( -70.05,   1.36) 03/12/2018   23:39:14  ( -70.03,   1.40)    2.82                36
 03/15/2018   14:15:27   ( -70.74, 141.41) 03/15/2018   14:16:36  ( -70.65, 142.91)   55.99                69
 03/15/2018   15:06:01   (  70.11, -50.27) 03/15/2018   15:06:11  (  70.10, -50.25)    0.83                10
 03/15/2018   15:56:43   ( -70.02, 117.19) 03/15/2018   15:55:41  ( -70.00, 117.24)    2.73                62
 03/18/2018   06:32:11   ( -70.18,-101.93) 03/18/2018   06:33:12  ( -70.18,-101.90)    1.03                61
 03/18/2018   07:22:55   (  70.07,  65.55) 03/18/2018   07:22:39  (  70.06,  65.58)    1.33                16
 03/18/2018   08:13:27   ( -69.45,-126.21) 03/18/2018   08:12:17  ( -69.52,-127.54)   52.27                70