Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2018 9 14.  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   ( -70.06, 129.75) 09/15/2018   15:06:18  ( -70.04, 129.74)    1.67                29
 09/15/2018   15:56:33   (  69.95, -62.78) 09/15/2018   15:55:45  (  69.94, -62.76)    1.14                48
 09/18/2018   06:32:04   (  70.28,  77.85) 09/18/2018   06:33:16  (  70.19,  78.20)   16.52                72
 09/18/2018   07:22:43   ( -70.02,-114.43) 09/18/2018   07:22:47  ( -70.02,-114.40)    1.32                 4
 09/18/2018   08:13:27   (  69.91,  53.04) 09/18/2018   08:12:14  (  69.92,  53.10)    2.26                73
 09/20/2018   22:48:56   (  70.09,-166.09) 09/20/2018   22:49:47  (  70.11,-166.03)    2.98                51
 09/20/2018   23:39:38   ( -69.99,   1.39) 09/20/2018   23:39:17  ( -70.01,   1.45)    3.16                21
 09/21/2018   00:30:06   (  69.03, 170.08) 09/21/2018   00:28:59  (  69.07, 167.83)   89.39                67
 09/23/2018   15:05:50   (  70.01, -50.19) 09/23/2018   15:06:18  (  70.03, -50.27)    3.38                28
 09/23/2018   15:56:32   ( -69.91, 117.28) 09/23/2018   15:55:48  ( -69.93, 117.22)    3.20                44
 09/26/2018   06:32:07   ( -70.40,-102.33) 09/26/2018   06:33:18  ( -70.28,-101.67)   28.16                71
 09/26/2018   07:22:45   (  69.98,  65.62) 09/26/2018   07:22:48  (  70.00,  65.57)    2.25                 3
 09/26/2018   08:13:27   ( -69.88,-126.91) 09/26/2018   08:12:18  ( -69.90,-126.93)    2.70                69