Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2018 5 17.  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   14:14:54   ( -70.43, 141.95) 05/18/2018   14:16:06  ( -70.36, 142.42)   19.00                72
 05/18/2018   15:05:35   (  70.16, -50.32) 05/18/2018   15:05:35  (  70.15, -50.24)    3.22                 0
 05/18/2018   15:56:16   ( -70.02, 117.22) 05/18/2018   15:55:05  ( -70.03, 117.23)    1.49                71
 05/21/2018   06:31:43   ( -70.18,-101.88) 05/21/2018   06:32:36  ( -70.20,-101.94)    2.60                53
 05/21/2018   07:22:27   (  70.07,  65.59) 05/21/2018   07:22:03  (  70.09,  65.56)    2.33                24
 05/21/2018   08:12:54   ( -69.19,-125.79) 05/21/2018   08:11:47  ( -69.21,-128.01)   87.66                67
 05/23/2018   22:48:37   ( -70.20,  13.87) 05/23/2018   22:49:03  ( -70.20,  13.94)    2.75                26
 05/23/2018   23:39:20   (  70.04,-178.58) 05/23/2018   23:38:31  (  70.03,-178.65)    2.86                49
 05/26/2018   14:14:49   (  70.32, -37.86) 05/26/2018   14:16:00  (  70.29, -37.67)    7.58                71
 05/26/2018   15:05:29   ( -70.11, 129.78) 05/26/2018   15:05:31  ( -70.13, 129.73)    2.86                 2
 05/26/2018   15:56:12   (  69.96, -62.68) 05/26/2018   15:54:59  (  69.97, -62.86)    7.06                73
 05/29/2018   06:31:40   (  70.24,  78.05) 05/29/2018   06:32:27  (  70.23,  78.11)    2.74                47
 05/29/2018   07:22:22   ( -70.13,-114.48) 05/29/2018   07:21:57  ( -70.12,-114.40)    3.09                25