Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2018 3 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)
 03/04/2018   22:49:08   ( -70.15,  13.90) 03/04/2018   22:49:49  ( -70.18,  13.97)    3.49                41
 03/04/2018   23:39:52   (  70.03,-178.60) 03/04/2018   23:39:17  (  70.02,-178.61)    1.36                35
 03/07/2018   14:15:31   (  70.78, -38.64) 03/07/2018   14:16:40  (  70.65, -37.09)   58.75                69
 03/07/2018   15:06:02   ( -70.12, 129.73) 03/07/2018   15:06:18  ( -70.10, 129.74)    1.92                16
 03/07/2018   15:56:46   (  69.99, -62.78) 03/07/2018   15:55:45  (  69.99, -62.77)    0.52                61
 03/10/2018   06:32:14   (  70.16,  78.10) 03/10/2018   06:33:16  (  70.18,  78.10)    1.84                62
 03/10/2018   07:22:56   ( -70.08,-114.44) 03/10/2018   07:22:46  ( -70.07,-114.42)    1.08                10
 03/10/2018   08:13:31   (  69.48,  53.75) 03/10/2018   08:12:21  (  69.52,  52.46)   50.14                70
 03/12/2018   22:49:07   (  70.13,-166.07) 03/12/2018   22:49:43  (  70.15,-166.07)    1.99                36
 03/12/2018   23:39:49   ( -70.04,   1.38) 03/12/2018   23:39:13  ( -70.04,   1.42)    1.31                36
 03/15/2018   14:15:27   ( -70.73, 141.44) 03/15/2018   14:16:37  ( -70.60, 142.84)   53.44                70
 03/15/2018   15:06:01   (  70.09, -50.25) 03/15/2018   15:06:11  (  70.11, -50.24)    1.65                10
 03/15/2018   15:56:43   ( -70.00, 117.21) 03/15/2018   15:55:41  ( -70.01, 117.25)    1.53                62
 03/18/2018   06:32:11   ( -70.17,-101.90) 03/18/2018   06:33:12  ( -70.18,-101.90)    1.68                61
 03/18/2018   07:22:55   (  70.06,  65.58) 03/18/2018   07:22:39  (  70.06,  65.58)    0.83                16
 03/18/2018   08:13:27   ( -69.43,-126.19) 03/18/2018   08:12:17  ( -69.53,-127.53)   53.36                70