Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2018 12 10.  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)
 12/12/2018   15:05:43   (  70.09, -50.25) 12/12/2018   15:06:31  (  70.06, -50.26)    3.60                48
 12/12/2018   15:56:24   ( -69.96, 117.28) 12/12/2018   15:56:01  ( -69.95, 117.22)    2.19                23
 12/15/2018   07:22:36   (  70.03,  65.63) 12/15/2018   07:23:00  (  70.03,  65.58)    2.10                24
 12/15/2018   08:13:17   ( -69.94,-126.91) 12/15/2018   08:12:29  ( -69.92,-126.94)    2.05                48
 12/17/2018   22:48:48   ( -70.28,  13.71) 12/17/2018   22:49:59  ( -70.21,  14.08)   15.93                71
 12/17/2018   23:39:29   (  70.01,-178.57) 12/17/2018   23:39:28  (  69.99,-178.59)    2.79                 1
 12/18/2018   00:30:10   ( -69.87, -11.03) 12/18/2018   00:28:58  ( -69.89, -11.10)    3.50                72
 12/20/2018   15:05:39   ( -70.11, 129.75) 12/20/2018   15:06:29  ( -70.12, 129.83)    3.02                50
 12/20/2018   15:56:22   (  69.95, -62.69) 12/20/2018   15:55:57  (  69.95, -62.77)    2.76                25
 12/20/2018   16:46:48   ( -69.01, 105.99) 12/20/2018   16:45:41  ( -69.08, 103.69)   91.60                67
 12/23/2018   07:22:32   ( -70.05,-114.37) 12/23/2018   07:22:59  ( -70.02,-114.42)    3.12                27
 12/23/2018   08:13:16   (  69.94,  53.10) 12/23/2018   08:12:25  (  69.96,  53.14)    2.66                51