Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2018 6 1.  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)
 06/03/2018   14:14:44   ( -70.39, 142.05) 06/03/2018   14:15:56  ( -70.29, 142.48)   19.36                72
 06/03/2018   15:05:24   (  70.07, -50.14) 06/03/2018   15:05:25  (  70.08, -50.18)    2.17                 1
 06/03/2018   15:56:06   ( -69.98, 117.32) 06/03/2018   15:54:55  ( -69.97, 117.30)    1.10                71
 06/06/2018   06:31:33   ( -70.15,-101.80) 06/06/2018   06:32:27  ( -70.16,-101.83)    1.04                54
 06/06/2018   07:22:17   (  70.04,  65.68) 06/06/2018   07:21:54  (  70.05,  65.66)    0.86                23
 06/06/2018   08:12:45   ( -69.21,-125.79) 06/06/2018   08:11:37  ( -69.23,-127.82)   80.34                68
 06/08/2018   22:48:25   ( -70.13,  14.01) 06/08/2018   22:48:55  ( -70.12,  14.02)    0.33                30
 06/08/2018   23:39:09   (  70.02,-178.51) 06/08/2018   23:38:22  (  70.01,-178.50)    0.93                47
 06/11/2018   14:14:40   (  70.41, -37.97) 06/11/2018   14:15:51  (  70.35, -37.40)   22.34                71
 06/11/2018   15:05:18   ( -70.10, 129.83) 06/11/2018   15:05:24  ( -70.09, 129.85)    2.14                 6
 06/11/2018   15:56:02   (  70.00, -62.70) 06/11/2018   15:54:51  (  69.97, -62.67)    3.32                71
 06/14/2018   06:31:28   (  70.13,  78.25) 06/14/2018   06:32:23  (  70.14,  78.18)    2.76                55
 06/14/2018   07:22:10   ( -70.03,-114.28) 06/14/2018   07:21:53  ( -70.04,-114.32)    2.09                17
 06/14/2018   08:12:40   (  69.18,  54.26) 06/14/2018   08:11:32  (  69.26,  52.26)   79.74                68