Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2018 4 10.  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)
 04/11/2018   06:32:04   (  70.16,  78.11) 04/11/2018   06:33:01  (  70.15,  78.03)    2.84                57
 04/11/2018   07:22:46   ( -70.07,-114.44) 04/11/2018   07:22:30  ( -70.09,-114.42)    2.62                16
 04/11/2018   08:13:17   (  69.26,  54.05) 04/11/2018   08:12:09  (  69.33,  52.18)   74.02                68
 04/13/2018   22:48:57   (  70.15,-166.10) 04/13/2018   22:49:28  (  70.12,-166.13)    2.69                31
 04/13/2018   23:39:39   ( -70.06,   1.35) 04/13/2018   23:38:57  ( -70.07,   1.42)    2.78                42
 04/16/2018   14:15:13   ( -70.56, 141.71) 04/16/2018   14:16:24  ( -70.47, 142.61)   34.60                71
 04/16/2018   15:05:50   (  70.08, -50.23) 04/16/2018   15:05:56  (  70.09, -50.30)    2.69                 6
 04/16/2018   15:56:32   ( -69.99, 117.23) 04/16/2018   15:55:26  ( -69.98, 117.18)    2.06                66
 04/19/2018   06:32:00   ( -70.18,-101.92) 04/19/2018   06:32:57  ( -70.16,-101.96)    2.40                57
 04/19/2018   07:22:44   (  70.07,  65.56) 04/19/2018   07:22:24  (  70.05,  65.53)    2.48                20
 04/19/2018   08:13:13   ( -69.29,-125.97) 04/19/2018   08:12:05  ( -69.34,-127.81)   72.47                68
 04/21/2018   22:48:54   ( -70.16,  13.88) 04/21/2018   22:49:24  ( -70.18,  13.94)    2.95                30
 04/21/2018   23:39:37   (  70.01,-178.58) 04/21/2018   23:38:52  (  70.01,-178.65)    2.91                45