Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2018 12 29.  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)
 12/31/2018   06:32:17   ( -70.60,-102.62) 12/31/2018   06:33:27  ( -70.51,-101.38)   47.04                70
 12/31/2018   07:22:52   (  70.01,  65.61) 12/31/2018   07:23:01  (  70.03,  65.56)    2.44                 9
 12/31/2018   08:13:34   ( -69.92,-126.93) 12/31/2018   08:12:31  ( -69.92,-126.96)    0.99                63
 01/02/2019   22:49:04   ( -70.11,  13.92) 01/02/2019   22:50:02  ( -70.13,  13.95)    2.95                58
 01/02/2019   23:39:48   (  70.00,-178.60) 01/02/2019   23:39:30  (  69.97,-178.64)    3.28                18
 01/03/2019   00:30:19   ( -69.32, -10.29) 01/03/2019   00:29:09  ( -69.37, -11.83)   60.66                70
 01/05/2019   15:06:01   ( -70.09, 129.71) 01/05/2019   15:06:32  ( -70.08, 129.74)    2.13                31
 01/05/2019   15:56:45   (  69.98, -62.81) 01/05/2019   15:55:59  (  69.96, -62.77)    2.79                46
 01/08/2019   06:32:18   (  70.29,  77.86) 01/08/2019   06:33:30  (  70.23,  78.21)   14.68                72
 01/08/2019   07:22:57   ( -70.02,-114.42) 01/08/2019   07:23:02  ( -70.01,-114.46)    1.98                 5
 01/08/2019   08:13:41   (  69.92,  53.05) 01/08/2019   08:12:29  (  69.90,  53.02)    2.26                72
 01/10/2019   22:49:12   (  70.12,-166.11) 01/10/2019   22:50:01  (  70.11,-166.09)    1.81                49
 01/10/2019   23:39:54   ( -70.01,   1.37) 01/10/2019   23:39:31  ( -70.00,   1.40)    1.51                23