Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2018 9 15.  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)
 09/15/2018   15:05:49   ( -70.07, 129.72) 09/15/2018   15:06:17  ( -70.08, 129.79)    2.85                28
 09/15/2018   15:56:32   (  69.91, -62.72) 09/15/2018   15:55:45  (  69.92, -62.78)    2.52                47
 09/18/2018   06:32:05   (  70.30,  77.83) 09/18/2018   06:33:16  (  70.23,  78.25)   17.91                71
 09/18/2018   07:22:43   ( -69.99,-114.38) 09/18/2018   07:22:48  ( -70.01,-114.43)    2.75                 5
 09/18/2018   08:13:27   (  69.88,  53.09) 09/18/2018   08:12:15  (  69.90,  53.07)    2.65                72
 09/20/2018   22:48:56   (  70.11,-166.11) 09/20/2018   22:49:47  (  70.09,-166.05)    2.86                51
 09/20/2018   23:39:38   ( -70.01,   1.36) 09/20/2018   23:39:17  ( -69.99,   1.43)    3.55                21
 09/21/2018   00:30:05   (  69.00, 170.12) 09/21/2018   00:28:59  (  69.05, 167.81)   92.38                66
 09/23/2018   15:05:50   (  70.03, -50.22) 09/23/2018   15:06:18  (  70.01, -50.29)    3.08                28
 09/23/2018   15:56:32   ( -69.93, 117.25) 09/23/2018   15:55:48  ( -69.91, 117.20)    2.54                44
 09/26/2018   06:32:06   ( -70.37,-102.28) 09/26/2018   06:33:18  ( -70.26,-101.69)   24.97                72
 09/26/2018   07:22:45   (  70.00,  65.59) 09/26/2018   07:22:48  (  69.98,  65.55)    2.59                 3
 09/26/2018   08:13:27   ( -69.90,-126.94) 09/26/2018   08:12:18  ( -69.88,-126.95)    1.63                69
 09/28/2018   22:48:56   ( -70.08,  13.93) 09/28/2018   22:49:51  ( -70.07,  13.91)    1.33                55
 09/28/2018   23:39:40   (  69.98,-178.61) 09/28/2018   23:39:18  (  69.95,-178.61)    3.29                22