Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2018 5 31.  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)
 05/31/2018   22:48:31   (  70.10,-165.97) 05/31/2018   22:48:56  (  70.10,-166.04)    2.91                25
 05/31/2018   23:39:13   ( -70.01,   1.48) 05/31/2018   23:38:25  ( -70.04,   1.50)    2.60                48
 06/03/2018   14:14:44   ( -70.40, 142.04) 06/03/2018   14:15:55  ( -70.33, 142.54)   20.10                71
 06/03/2018   15:05:24   (  70.08, -50.15) 06/03/2018   15:05:25  (  70.07, -50.20)    2.12                 1
 06/03/2018   15:56:06   ( -69.98, 117.30) 06/03/2018   15:54:54  ( -70.01, 117.35)    3.31                72
 06/06/2018   06:31:33   ( -70.16,-101.82) 06/06/2018   06:32:27  ( -70.14,-101.85)    2.86                54
 06/06/2018   07:22:17   (  70.05,  65.66) 06/06/2018   07:21:54  (  70.03,  65.64)    2.48                23
 06/06/2018   08:12:44   ( -69.16,-125.73) 06/06/2018   08:11:37  ( -69.21,-127.85)   83.99                67
 06/08/2018   22:48:25   ( -70.14,  14.00) 06/08/2018   22:48:54  ( -70.16,  14.06)    3.40                29
 06/08/2018   23:39:08   (  69.98,-178.45) 06/08/2018   23:38:22  (  69.99,-178.53)    3.49                46
 06/11/2018   14:14:40   (  70.42, -37.99) 06/11/2018   14:15:51  (  70.33, -37.43)   23.24                71
 06/11/2018   15:05:17   ( -70.06, 129.89) 06/11/2018   15:05:24  ( -70.06, 129.82)    2.83                 7
 06/11/2018   15:56:01   (  69.95, -62.64) 06/11/2018   15:54:51  (  69.95, -62.70)    2.51                70
 06/14/2018   06:31:28   (  70.14,  78.23) 06/14/2018   06:32:22  (  70.17,  78.23)    3.40                54
 06/14/2018   07:22:10   ( -70.04,-114.30) 06/14/2018   07:21:53  ( -70.02,-114.36)    3.33                17
 06/14/2018   08:12:40   (  69.19,  54.25) 06/14/2018   08:11:32  (  69.24,  52.22)   79.99                68