Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2018 3 15.  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)
 03/15/2018   14:15:27   ( -70.74, 141.42) 03/15/2018   14:16:36  ( -70.67, 142.93)   56.00                69
 03/15/2018   15:06:01   (  70.09, -50.25) 03/15/2018   15:06:12  (  70.07, -50.29)    2.68                11
 03/15/2018   15:56:43   ( -70.01, 117.19) 03/15/2018   15:55:41  ( -70.01, 117.25)    2.32                62
 03/18/2018   06:32:11   ( -70.18,-101.92) 03/18/2018   06:33:12  ( -70.19,-101.89)    1.73                61
 03/18/2018   07:22:55   (  70.06,  65.57) 03/18/2018   07:22:39  (  70.09,  65.61)    3.11                16
 03/18/2018   08:13:27   ( -69.45,-126.21) 03/18/2018   08:12:17  ( -69.54,-127.52)   52.06                70
 03/20/2018   22:49:04   ( -70.15,  13.90) 03/20/2018   22:49:39  ( -70.15,  13.93)    1.36                35
 03/20/2018   23:39:48   (  70.03,-178.62) 03/20/2018   23:39:06  (  70.04,-178.58)    1.75                42
 03/23/2018   14:15:22   (  70.52, -38.24) 03/23/2018   14:16:33  (  70.43, -37.42)   32.34                71
 03/23/2018   15:05:58   ( -70.12, 129.72) 03/23/2018   15:06:07  ( -70.10, 129.75)    1.91                 9
 03/23/2018   15:56:42   (  70.00, -62.80) 03/23/2018   15:55:34  (  69.99, -62.77)    1.85                68
 03/26/2018   06:32:10   (  70.18,  78.08) 03/26/2018   06:33:05  (  70.16,  78.07)    2.51                55
 03/26/2018   07:22:51   ( -70.03,-114.38) 03/26/2018   07:22:35  ( -70.05,-114.44)    3.26                16
 03/26/2018   08:13:22   (  69.23,  54.10) 03/26/2018   08:12:14  (  69.27,  52.14)   77.22                68
 03/28/2018   22:49:04   (  70.15,-166.11) 03/28/2018   22:49:32  (  70.15,-166.05)    2.17                28
 03/28/2018   23:39:45   ( -70.00,   1.44) 03/28/2018   23:39:03  ( -70.00,   1.36)    2.93                42