Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2018 8 11.  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)
 08/11/2018   22:48:46   ( -70.08,  13.98) 08/11/2018   22:49:34  ( -70.11,  13.96)    2.87                48
 08/11/2018   23:39:30   (  69.96,-178.53) 08/11/2018   23:39:02  (  69.95,-178.61)    2.96                28
 08/14/2018   14:15:16   (  71.01, -39.06) 08/14/2018   14:16:22  (  70.91, -36.60)   90.03                66
 08/14/2018   15:05:42   ( -70.08, 129.75) 08/14/2018   15:06:05  ( -70.08, 129.81)    2.32                23
 08/14/2018   15:56:26   (  69.96, -62.76) 08/14/2018   15:55:33  (  69.93, -62.77)    3.65                53
 08/17/2018   06:31:55   (  70.11,  78.14) 08/17/2018   06:33:07  (  70.11,  78.09)    2.02                72
 08/17/2018   07:22:37   ( -70.02,-114.40) 08/17/2018   07:22:37  ( -70.00,-114.43)    2.65                 0
 08/17/2018   08:13:18   (  69.75,  53.32) 08/17/2018   08:12:06  (  69.78,  52.91)   16.07                72
 08/19/2018   22:48:49   (  70.06,-166.01) 08/19/2018   22:49:37  (  70.07,-166.08)    2.72                48
 08/19/2018   23:39:31   ( -69.97,   1.45) 08/19/2018   23:39:07  ( -69.97,   1.40)    1.76                24
 08/22/2018   15:05:45   (  70.07, -50.25) 08/22/2018   15:06:08  (  70.03, -50.26)    3.44                23
 08/22/2018   15:56:26   ( -69.91, 117.30) 08/22/2018   15:55:38  ( -69.93, 117.23)    3.40                48
 08/25/2018   06:31:59   ( -70.28,-102.12) 08/25/2018   06:33:10  ( -70.22,-101.76)   14.91                71
 08/25/2018   07:22:40   (  70.02,  65.59) 08/25/2018   07:22:39  (  69.99,  65.57)    2.74                 1
 08/25/2018   08:13:22   ( -69.91,-126.93) 08/25/2018   08:12:09  ( -69.89,-126.94)    1.92                73