Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2018 4 22.  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)
 04/24/2018   14:15:09   (  70.48, -38.16) 04/24/2018   14:16:20  (  70.37, -37.54)   25.82                71
 04/24/2018   15:05:46   ( -70.12, 129.71) 04/24/2018   15:05:53  ( -70.10, 129.69)    3.43                 7
 04/24/2018   15:56:30   (  70.01, -62.80) 04/24/2018   15:55:20  (  69.99, -62.81)    2.17                70
 04/27/2018   06:31:58   (  70.22,  78.03) 04/27/2018   06:32:51  (  70.20,  78.08)    3.29                53
 04/27/2018   07:22:39   ( -70.07,-114.43) 04/27/2018   07:22:21  ( -70.08,-114.45)    1.53                18
 04/27/2018   08:13:09   (  69.22,  54.13) 04/27/2018   08:12:01  (  69.26,  52.08)   81.00                68
 04/29/2018   22:48:50   (  70.17,-166.13) 04/29/2018   22:49:18  (  70.18,-166.07)    2.37                28
 04/29/2018   23:39:32   ( -70.07,   1.34) 04/29/2018   23:38:48  ( -70.07,   1.41)    2.73                44
 05/02/2018   14:15:05   ( -70.54, 141.75) 05/02/2018   14:16:16  ( -70.43, 142.54)   31.42                71
 05/02/2018   15:05:43   (  70.13, -50.28) 05/02/2018   15:05:47  (  70.10, -50.30)    2.55                 4
 05/02/2018   15:56:25   ( -70.02, 117.19) 05/02/2018   15:55:17  ( -70.00, 117.19)    2.82                68
 05/05/2018   06:31:52   ( -70.18,-101.90) 05/05/2018   06:32:48  ( -70.20,-101.93)    1.95                56
 05/05/2018   07:22:36   (  70.08,  65.56) 05/05/2018   07:22:15  (  70.08,  65.55)    0.34                21