Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2018 6 16.  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)
 06/16/2018   22:48:26   (  70.14,-166.02) 06/16/2018   22:49:02  (  70.15,-165.96)    2.55                36
 06/16/2018   23:39:07   ( -70.00,   1.51) 06/16/2018   23:38:33  ( -69.99,   1.44)    3.29                34
 06/19/2018   14:14:49   ( -70.81, 141.38) 06/19/2018   14:15:58  ( -70.69, 143.06)   63.33                69
 06/19/2018   15:05:22   (  70.11, -50.21) 06/19/2018   15:05:34  (  70.09, -50.17)    2.90                12
 06/19/2018   15:56:03   ( -69.97, 117.32) 06/19/2018   15:55:04  ( -69.98, 117.31)    1.21                59
 06/22/2018   06:31:33   ( -70.15,-101.81) 06/22/2018   06:32:39  ( -70.13,-101.87)    3.13                66
 06/22/2018   07:22:17   (  70.03,  65.68) 06/22/2018   07:22:06  (  70.02,  65.62)    2.57                11
 06/22/2018   08:12:52   ( -69.57,-126.32) 06/22/2018   08:11:41  ( -69.65,-127.28)   37.89                71
 06/24/2018   22:48:29   ( -70.12,  14.00) 06/24/2018   22:49:10  ( -70.12,  13.99)    0.39                41
 06/24/2018   23:39:13   (  70.01,-178.52) 06/24/2018   23:38:37  (  70.01,-178.52)    0.39                36
 06/27/2018   14:14:53   (  70.77, -38.58) 06/27/2018   14:16:02  (  70.64, -37.00)   59.94                69
 06/27/2018   15:05:24   ( -70.10, 129.80) 06/27/2018   15:05:40  ( -70.11, 129.85)    1.91                16
 06/27/2018   15:56:08   (  69.98, -62.72) 06/27/2018   15:55:07  (  69.99, -62.67)    1.91                61
 06/30/2018   06:31:38   (  70.17,  78.14) 06/30/2018   06:32:41  (  70.18,  78.20)    2.82                63
 06/30/2018   07:22:19   ( -70.02,-114.32) 06/30/2018   07:22:12  ( -70.03,-114.38)    2.60                 7
 06/30/2018   08:12:56   (  69.54,  53.71) 06/30/2018   08:11:45  (  69.58,  52.64)   41.63                71