Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2018 3 9.  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)
 03/10/2018   06:32:14   (  70.18,  78.08) 03/10/2018   06:33:16  (  70.17,  78.09)    0.71                62
 03/10/2018   07:22:55   ( -70.04,-114.40) 03/10/2018   07:22:46  ( -70.06,-114.44)    2.27                 9
 03/10/2018   08:13:31   (  69.49,  53.72) 03/10/2018   08:12:21  (  69.51,  52.45)   49.67                70
 03/12/2018   22:49:08   (  70.14,-166.10) 03/12/2018   22:49:44  (  70.14,-166.08)    1.09                36
 03/12/2018   23:39:49   ( -70.01,   1.43) 03/12/2018   23:39:14  ( -70.02,   1.39)    2.24                35
 03/15/2018   14:15:27   ( -70.75, 141.40) 03/15/2018   14:16:36  ( -70.64, 142.89)   56.48                69
 03/15/2018   15:06:01   (  70.11, -50.28) 03/15/2018   15:06:11  (  70.10, -50.26)    1.87                10
 03/15/2018   15:56:42   ( -69.97, 117.25) 03/15/2018   15:55:41  ( -69.99, 117.22)    2.03                61
 03/18/2018   06:32:11   ( -70.20,-101.95) 03/18/2018   06:33:12  ( -70.17,-101.92)    3.39                61
 03/18/2018   07:22:55   (  70.08,  65.54) 03/18/2018   07:22:39  (  70.05,  65.56)    3.08                16
 03/18/2018   08:13:27   ( -69.46,-126.23) 03/18/2018   08:12:17  ( -69.51,-127.55)   51.96                70
 03/20/2018   22:49:04   ( -70.11,  13.96) 03/20/2018   22:49:40  ( -70.12,  13.90)    2.78                36
 03/20/2018   23:39:48   (  70.00,-178.56) 03/20/2018   23:39:07  (  70.01,-178.62)    2.56                41
 03/23/2018   14:15:23   (  70.54, -38.26) 03/23/2018   14:16:34  (  70.39, -37.46)   33.90                71
 03/23/2018   15:05:58   ( -70.08, 129.78) 03/23/2018   15:06:08  ( -70.07, 129.71)    2.73                10
 03/23/2018   15:56:42   (  69.97, -62.75) 03/23/2018   15:55:35  (  69.96, -62.81)    2.81                67