Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2018 12 31.  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   ( -70.61,-102.64) 12/31/2018   06:33:27  ( -70.49,-101.41)   47.59                70
 12/31/2018   07:22:52   (  70.02,  65.59) 12/31/2018   07:23:01  (  70.01,  65.53)    2.94                 9
 12/31/2018   08:13:34   ( -69.93,-126.95) 12/31/2018   08:12:30  ( -69.95,-126.92)    2.19                64
 01/02/2019   22:49:05   ( -70.12,  13.90) 01/02/2019   22:50:03  ( -70.10,  13.90)    2.60                58
 01/02/2019   23:39:48   (  70.01,-178.62) 01/02/2019   23:39:29  (  69.99,-178.60)    1.77                19
 01/03/2019   00:30:18   ( -69.28, -10.23) 01/03/2019   00:29:09  ( -69.33, -11.87)   64.69                69
 01/05/2019   15:06:00   ( -70.05, 129.77) 01/05/2019   15:06:31  ( -70.08, 129.76)    3.39                31
 01/05/2019   15:56:44   (  69.94, -62.75) 01/05/2019   15:55:58  (  69.98, -62.75)    3.61                46
 01/08/2019   06:32:18   (  70.30,  77.84) 01/08/2019   06:33:29  (  70.22,  78.21)   16.33                71
 01/08/2019   07:22:57   ( -70.04,-114.44) 01/08/2019   07:23:00  ( -70.06,-114.39)    3.15                 3
 01/08/2019   08:13:40   (  69.88,  53.11) 01/08/2019   08:12:28  (  69.90,  53.02)    3.72                72
 01/10/2019   22:49:11   (  70.08,-166.06) 01/10/2019   22:50:00  (  70.08,-166.11)    2.15                49
 01/10/2019   23:39:53   ( -69.98,   1.42) 01/10/2019   23:39:30  ( -69.98,   1.37)    1.90                23
 01/13/2019   14:15:41   ( -71.06, 140.82) 01/13/2019   14:16:47  ( -70.98, 143.46)   95.94                66
 01/13/2019   15:06:07   (  70.08, -50.28) 01/13/2019   15:06:28  (  70.05, -50.28)    3.28                21
 01/13/2019   15:56:49   ( -69.97, 117.20) 01/13/2019   15:55:58  ( -69.94, 117.21)    2.52                51