Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2019 1 13.  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)
 01/13/2019   14:15:41   ( -71.08, 140.79) 01/13/2019   14:16:47  ( -71.00, 143.48)   97.89                66
 01/13/2019   15:06:08   (  70.08, -50.29) 01/13/2019   15:06:29  (  70.07, -50.25)    1.62                21
 01/13/2019   15:56:50   ( -69.99, 117.17) 01/13/2019   15:55:59  ( -69.97, 117.23)    3.00                51
 01/16/2019   06:32:20   ( -70.13,-101.91) 01/16/2019   06:33:31  ( -70.16,-101.89)    3.08                71
 01/16/2019   07:23:04   (  70.02,  65.57) 01/16/2019   07:22:58  (  70.04,  65.59)    2.65                 6
 01/16/2019   08:13:43   ( -69.77,-126.73) 01/16/2019   08:12:30  ( -69.83,-127.07)   15.33                73
 01/18/2019   22:49:16   ( -70.13,  13.87) 01/18/2019   22:49:59  ( -70.13,  13.95)    3.06                43
 01/18/2019   23:39:59   (  69.97,-178.58) 01/18/2019   23:39:27  (  69.96,-178.65)    2.82                32
 01/21/2019   14:15:41   (  70.75, -38.67) 01/21/2019   14:16:50  (  70.64, -37.06)   60.64                69
 01/21/2019   15:06:12   ( -70.07, 129.73) 01/21/2019   15:06:29  ( -70.05, 129.71)    2.34                17
 01/21/2019   15:56:56   (  69.96, -62.81) 01/21/2019   15:55:55  (  69.98, -62.74)    3.40                61
 01/24/2019   06:32:26   (  70.12,  78.10) 01/24/2019   06:33:28  (  70.11,  78.05)    2.37                62
 01/24/2019   07:23:08   ( -70.01,-114.42) 01/24/2019   07:22:58  ( -70.01,-114.46)    1.35                10
 01/24/2019   08:13:43   (  69.44,  53.74) 01/24/2019   08:12:33  (  69.45,  52.42)   51.90                70
 01/26/2019   22:49:22   (  70.07,-166.06) 01/26/2019   22:49:57  (  70.07,-166.13)    2.68                35
 01/26/2019   23:40:04   ( -69.96,   1.43) 01/26/2019   23:39:27  ( -69.98,   1.37)    2.68                37