Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2018 5 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)
 05/23/2018   22:48:36   ( -70.16,  13.93) 05/23/2018   22:49:03  ( -70.18,  13.92)    1.95                27
 05/23/2018   23:39:20   (  70.05,-178.59) 05/23/2018   23:38:30  (  70.08,-178.58)    3.12                50
 05/26/2018   14:14:49   (  70.33, -37.87) 05/26/2018   14:16:00  (  70.29, -37.68)    8.54                71
 05/26/2018   15:05:29   ( -70.13, 129.75) 05/26/2018   15:05:31  ( -70.12, 129.71)    1.97                 2
 05/26/2018   15:56:11   (  69.91, -62.61) 05/26/2018   15:54:59  (  69.96, -62.87)   11.10                72
 05/29/2018   06:31:40   (  70.19,  78.11) 05/29/2018   06:32:28  (  70.22,  78.10)    2.71                48
 05/29/2018   07:22:22   ( -70.10,-114.42) 05/29/2018   07:21:58  ( -70.11,-114.42)    1.28                24
 05/31/2018   22:48:32   (  70.17,-166.07) 05/31/2018   22:48:55  (  70.15,-166.12)    3.08                23
 05/31/2018   23:39:14   ( -70.07,   1.40) 05/31/2018   23:38:24  ( -70.10,   1.44)    3.38                50
 06/03/2018   14:14:42   ( -70.30, 142.20) 06/03/2018   14:15:54  ( -70.30, 142.33)    4.90                72
 06/03/2018   15:05:25   (  70.14, -50.26) 06/03/2018   15:05:22  (  70.13, -50.27)    1.98                 3
 06/03/2018   15:56:06   ( -69.99, 117.30) 06/03/2018   15:54:52  ( -70.02, 117.22)    4.91                74