Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2018 12 23.  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)
 12/23/2018   06:32:15   (  70.77,  77.11) 12/23/2018   06:33:23  (  70.66,  78.85)   65.14                68
 12/23/2018   07:22:45   ( -70.05,-114.43) 12/23/2018   07:23:02  ( -70.06,-114.40)    1.32                17
 12/23/2018   08:13:29   (  69.93,  53.06) 12/23/2018   08:12:29  (  69.95,  53.10)    2.84                60
 12/25/2018   22:48:59   (  70.12,-166.09) 12/25/2018   22:50:01  (  70.14,-166.04)    2.69                62
 12/25/2018   23:39:41   ( -70.03,   1.37) 12/25/2018   23:39:31  ( -70.03,   1.44)    2.55                10
 12/26/2018   00:30:16   (  69.43, 169.56) 12/26/2018   00:29:06  (  69.48, 168.33)   48.39                70
 12/28/2018   15:05:55   (  70.05, -50.21) 12/28/2018   15:06:32  (  70.06, -50.28)    2.95                37
 12/28/2018   15:56:37   ( -69.95, 117.25) 12/28/2018   15:56:02  ( -69.95, 117.21)    1.86                35
 12/31/2018   06:32:18   ( -70.66,-102.72) 12/31/2018   06:33:28  ( -70.53,-101.36)   52.24                70
 12/31/2018   07:22:52   (  70.03,  65.59) 12/31/2018   07:23:02  (  70.03,  65.57)    1.12                10
 12/31/2018   08:13:34   ( -69.93,-126.95) 12/31/2018   08:12:32  ( -69.93,-126.94)    0.57                62
 01/02/2019   22:49:05   ( -70.12,  13.91) 01/02/2019   22:50:05  ( -70.13,  13.93)    2.08                60
 01/02/2019   23:39:49   (  70.01,-178.62) 01/02/2019   23:39:32  (  70.02,-178.58)    1.71                17
 01/03/2019   00:30:21   ( -69.38, -10.37) 01/03/2019   00:29:11  ( -69.42, -11.76)   54.71                70
 01/05/2019   15:06:01   ( -70.10, 129.71) 01/05/2019   15:06:35  ( -70.07, 129.72)    3.35                34
 01/05/2019   15:56:44   (  69.94, -62.75) 01/05/2019   15:56:02  (  69.95, -62.80)    2.15                42