Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2018 5 16.  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)
 05/18/2018   14:14:55   ( -70.44, 141.95) 05/18/2018   14:16:07  ( -70.35, 142.41)   19.60                72
 05/18/2018   15:05:35   (  70.12, -50.25) 05/18/2018   15:05:36  (  70.14, -50.25)    2.83                 1
 05/18/2018   15:56:17   ( -70.02, 117.21) 05/18/2018   15:55:06  ( -70.03, 117.22)    0.29                71
 05/21/2018   06:31:43   ( -70.19,-101.89) 05/21/2018   06:32:36  ( -70.19,-101.95)    2.05                53
 05/21/2018   07:22:27   (  70.08,  65.58) 05/21/2018   07:22:03  (  70.09,  65.55)    1.39                24
 05/21/2018   08:12:54   ( -69.19,-125.80) 05/21/2018   08:11:46  ( -69.26,-127.94)   84.91                68
 05/23/2018   22:48:37   ( -70.21,  13.86) 05/23/2018   22:49:03  ( -70.19,  13.93)    3.36                26
 05/23/2018   23:39:20   (  70.05,-178.59) 05/23/2018   23:38:30  (  70.08,-178.58)    3.54                50
 05/26/2018   14:14:49   (  70.33, -37.87) 05/26/2018   14:16:00  (  70.29, -37.68)    8.39                71
 05/26/2018   15:05:29   ( -70.12, 129.77) 05/26/2018   15:05:31  ( -70.13, 129.73)    1.80                 2
 05/26/2018   15:56:12   (  69.97, -62.69) 05/26/2018   15:54:59  (  69.96, -62.87)    6.80                73
 05/29/2018   06:31:40   (  70.19,  78.11) 05/29/2018   06:32:28  (  70.22,  78.10)    3.23                48
 05/29/2018   07:22:22   ( -70.09,-114.41) 05/29/2018   07:21:58  ( -70.12,-114.41)    3.36                24