Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2018 3 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)
 03/31/2018   14:15:21   ( -70.67, 141.52) 03/31/2018   14:16:31  ( -70.58, 142.78)   47.68                70
 03/31/2018   15:05:56   (  70.08, -50.24) 03/31/2018   15:06:05  (  70.10, -50.28)    2.20                 9
 03/31/2018   15:56:38   ( -70.00, 117.21) 03/31/2018   15:55:35  ( -69.99, 117.20)    1.59                63
 04/03/2018   06:32:06   ( -70.18,-101.92) 04/03/2018   06:33:06  ( -70.19,-101.91)    1.12                60
 04/03/2018   07:22:50   (  70.06,  65.56) 04/03/2018   07:22:33  (  70.08,  65.58)    2.16                17
 04/03/2018   08:13:22   ( -69.45,-126.21) 04/03/2018   08:12:12  ( -69.48,-127.62)   55.17                70
 04/05/2018   22:49:00   ( -70.16,  13.88) 04/05/2018   22:49:34  ( -70.17,  13.94)    2.85                34
 04/05/2018   23:39:44   (  70.05,-178.64) 04/05/2018   23:39:01  (  70.06,-178.57)    3.27                43
 04/08/2018   14:15:17   (  70.55, -38.28) 04/08/2018   14:16:28  (  70.42, -37.45)   33.79                71
 04/08/2018   15:05:52   ( -70.08, 129.77) 04/08/2018   15:06:02  ( -70.10, 129.71)    2.55                10
 04/08/2018   15:56:36   (  69.98, -62.76) 04/08/2018   15:55:29  (  69.99, -62.80)    1.92                67
 04/11/2018   06:32:04   (  70.16,  78.10) 04/11/2018   06:33:00  (  70.18,  78.07)    1.85                56
 04/11/2018   07:22:46   ( -70.06,-114.43) 04/11/2018   07:22:30  ( -70.07,-114.44)    1.23                16
 04/11/2018   08:13:17   (  69.27,  54.04) 04/11/2018   08:12:09  (  69.29,  52.14)   75.02                68